Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: TheBoy on 21 January 2009, 18:32:01

Title: TD Fuel Consumption (still)
Post by: TheBoy on 21 January 2009, 18:32:01
right, no visible leaks from tank, fuel lines, pump, filter etc.  Maybe tiniest weep from top of injector to fuel pipe, but nothing that could explain this.

Still struggling to get 30mpg, computer reckons high 30s mpg (have been caning it ::)).

I have one theory, but guessing not finacially viable.


So, any ideas before it gets recycled into a washing machine?  :'(
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 21 January 2009, 18:33:08
in a nutshell, for past few months, I've been 'losing' a quarter of all fuel put in :(
Title: Re: TD Fuel Consumption (still)
Post by: Omegatoy on 21 January 2009, 19:03:41
A suggestion :y try putting the standard chip back in for a couple of weeks,
reason, the chip in yours is chucking vast amounts of fuel in to make power, maybe just maybe your not burning it all properly? by putting original chip in you are not able to chuck so much fuel in so if you have a slightly worn injector not so much fuel will pass so may sort your consumption probs ,
got to be worth a try just for peace of mind?
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 21 January 2009, 19:09:18
Quote
A suggestion :y try putting the standard chip back in for a couple of weeks,
reason, the chip in yours is chucking vast amounts of fuel in to make power, maybe just maybe your not burning it all properly? by putting original chip in you are not able to chuck so much fuel in so if you have a slightly worn injector not so much fuel will pass so may sort your consumption probs ,
got to be worth a try just for peace of mind?
that was my plan once this 10g has gone (so I can work out current economy).

My theory is a leaking/scored injector :(
Title: Re: TD Fuel Consumption (still)
Post by: Omegatoy on 21 January 2009, 19:14:49
Quote
Quote
A suggestion :y try putting the standard chip back in for a couple of weeks,
reason, the chip in yours is chucking vast amounts of fuel in to make power, maybe just maybe your not burning it all properly? by putting original chip in you are not able to chuck so much fuel in so if you have a slightly worn injector not so much fuel will pass so may sort your consumption probs ,
got to be worth a try just for peace of mind?
that was my plan once this 10g has gone (so I can work out current economy).

My theory is a leaking/scored injector :(

thats what made suggest the chip if it is slightly scored or worn the chip wont help consumption at all, usually tho a scored or worn injector will cause the engine to knock, however diesel knock is very hard to describe in writing you would have to hear it a couple of times to be able to identify it :y
not sying the chip change will sort it but would definetly help with the lower injector pressures :y
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 21 January 2009, 19:16:42
Quote
Quote
Quote
A suggestion :y try putting the standard chip back in for a couple of weeks,
reason, the chip in yours is chucking vast amounts of fuel in to make power, maybe just maybe your not burning it all properly? by putting original chip in you are not able to chuck so much fuel in so if you have a slightly worn injector not so much fuel will pass so may sort your consumption probs ,
got to be worth a try just for peace of mind?
that was my plan once this 10g has gone (so I can work out current economy).

My theory is a leaking/scored injector :(

thats what made suggest the chip if it is slightly scored or worn the chip wont help consumption at all, usually tho a scored or worn injector will cause the engine to knock, however diesel knock is very hard to describe in writing you would have to hear it a couple of times to be able to identify it :y
not sying the chip change will sort it but would definetly help with the lower injector pressures :y
You've heard the engine, do you recall a knock?
Title: Re: TD Fuel Consumption (still)
Post by: CaptainZok on 21 January 2009, 19:18:27
Do I detect another tractor mega thread in the making? ;D
Title: Re: TD Fuel Consumption (still)
Post by: Omegatoy on 21 January 2009, 19:33:04
Quote
Quote
Quote
Quote
A suggestion :y try putting the standard chip back in for a couple of weeks,
reason, the chip in yours is chucking vast amounts of fuel in to make power, maybe just maybe your not burning it all properly? by putting original chip in you are not able to chuck so much fuel in so if you have a slightly worn injector not so much fuel will pass so may sort your consumption probs ,
got to be worth a try just for peace of mind?
that was my plan once this 10g has gone (so I can work out current economy).

My theory is a leaking/scored injector :(

thats what made suggest the chip if it is slightly scored or worn the chip wont help consumption at all, usually tho a scored or worn injector will cause the engine to knock, however diesel knock is very hard to describe in writing you would have to hear it a couple of times to be able to identify it :y
not sying the chip change will sort it but would definetly help with the lower injector pressures :y
You've heard the engine, do you recall a knock?

strangely enough it always sounded slightly "off" when it was cold to me but i just thought it was a characteristic of your engine!!!
but no didnt hear any diesel knock that would have suggested porly injector last time i heard it! thats not to say you dont have a scored injector tho!!! :y
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 21 January 2009, 19:37:15
Quote
Quote
Quote
Quote
Quote
A suggestion :y try putting the standard chip back in for a couple of weeks,
reason, the chip in yours is chucking vast amounts of fuel in to make power, maybe just maybe your not burning it all properly? by putting original chip in you are not able to chuck so much fuel in so if you have a slightly worn injector not so much fuel will pass so may sort your consumption probs ,
got to be worth a try just for peace of mind?
that was my plan once this 10g has gone (so I can work out current economy).

My theory is a leaking/scored injector :(

thats what made suggest the chip if it is slightly scored or worn the chip wont help consumption at all, usually tho a scored or worn injector will cause the engine to knock, however diesel knock is very hard to describe in writing you would have to hear it a couple of times to be able to identify it :y
not sying the chip change will sort it but would definetly help with the lower injector pressures :y
You've heard the engine, do you recall a knock?

strangely enough it always sounded slightly "off" when it was cold to me but i just thought it was a characteristic of your engine!!!
but no didnt hear any diesel knock that would have suggested porly injector last time i heard it! thats not to say you dont have a scored injector tho!!! :y
Always a bit of a clatter when cold.

a new set of injectors does not make financial sense, so unless I can prove 100%, it will be converted to baked bean cans  :'(
Title: Re: TD Fuel Consumption (still)
Post by: vauxfan2k on 21 January 2009, 20:35:22
are the same injectors used on the bmw's that have this engine? reason i ask is that the polish guys that tok my engine from the tractor I broke, will still have the omega ones (if not the same) or the bmw's own ones (if they are the same)

I can ask for a set back for you.


cheers
Title: Re: TD Fuel Consumption (still)
Post by: cem_devecioglu on 21 January 2009, 20:40:05
Quote
Quote
Quote
Quote
Quote
Quote
A suggestion :y try putting the standard chip back in for a couple of weeks,
reason, the chip in yours is chucking vast amounts of fuel in to make power, maybe just maybe your not burning it all properly? by putting original chip in you are not able to chuck so much fuel in so if you have a slightly worn injector not so much fuel will pass so may sort your consumption probs ,
got to be worth a try just for peace of mind?
that was my plan once this 10g has gone (so I can work out current economy).

My theory is a leaking/scored injector :(

thats what made suggest the chip if it is slightly scored or worn the chip wont help consumption at all, usually tho a scored or worn injector will cause the engine to knock, however diesel knock is very hard to describe in writing you would have to hear it a couple of times to be able to identify it :y
not sying the chip change will sort it but would definetly help with the lower injector pressures :y
You've heard the engine, do you recall a knock?

strangely enough it always sounded slightly "off" when it was cold to me but i just thought it was a characteristic of your engine!!!
but no didnt hear any diesel knock that would have suggested porly injector last time i heard it! thats not to say you dont have a scored injector tho!!! :y
Always a bit of a clatter when cold.

a new set of injectors does not make financial sense, so unless I can prove 100%, it will be converted to baked bean cans  :'(

some injector cleaner shops have testing equipment..a flow rate test will give ideas as they are visible inside the tubes..
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 21 January 2009, 21:00:04
Quote
are the same injectors used on the bmw's that have this engine? reason i ask is that the polish guys that tok my engine from the tractor I broke, will still have the omega ones (if not the same) or the bmw's own ones (if they are the same)

I can ask for a set back for you.


cheers
The same I would imagine.....
Title: Re: TD Fuel Consumption (still)
Post by: vauxfan2k on 21 January 2009, 21:10:46
ok, when im down that way next wednesday i will ask them, I know their old engine is under a cover in their shed.

Title: Re: TD Fuel Consumption (still)
Post by: Seth on 21 January 2009, 22:01:18
Quote
right, no visible leaks from tank, fuel lines, pump, filter etc.  Maybe tiniest weep from top of injector to fuel pipe, but nothing that could explain this.

Still struggling to get 30mpg, computer reckons high 30s mpg (have been caning it ::)).

I have one theory, but guessing not finacially viable.

Is your tractor manual or auto?
The reason I'm asking is that the autos I've come across seem to struggle to get 30mpg - Markseth's was one example.
Since you chipped my manual, I'm getting a near constant 33mpg. I'm sure that Pitchfork's returns similar figures, and reckon this is realistic for a near-2 ton motor.
Financial viability aside, I go along with the injector theory here.
Just one 'dribbling' injector will play havoc with your consumption figures.




So, any ideas before it gets recycled into a washing machine?  :'(
Title: Re: TD Fuel Consumption (still)
Post by: BigAl on 21 January 2009, 22:12:53
dont know if it helps but i have a similar issue.
Current Comp says 22 MPG but get 180 miles out of tank - 2.6 engine
- previous mig said 19 MPG but got 220 out the tank - 2.0 engine
both tanks run until petrol pump symbol flashed. :-?
Title: Re: TD Fuel Consumption (still)
Post by: Pitchfork on 22 January 2009, 09:19:42
Quote
Quote
right, no visible leaks from tank, fuel lines, pump, filter etc.  Maybe tiniest weep from top of injector to fuel pipe, but nothing that could explain this.

Still struggling to get 30mpg, computer reckons high 30s mpg (have been caning it ::)).

I have one theory, but guessing not finacially viable.

Is your tractor manual or auto?
The reason I'm asking is that the autos I've come across seem to struggle to get 30mpg - Markseth's was one example.
Since you chipped my manual, I'm getting a near constant 33mpg. I'm sure that Pitchfork's returns similar figures, and reckon this is realistic for a near-2 ton motor.
Financial viability aside, I go along with the injector theory here.
Just one 'dribbling' injector will play havoc with your consumption figures.




So, any ideas before it gets recycled into a washing machine?  :'(
Pitchfork's Traktor is an automatic & gets 33mpg on a run & always has, less around town obviously. When on a run It's usually pulling a lot of weight with a 5KW PA system & speakers, guitar amp, instruments, foldback monitors etc. etc.
Figures calculated over many tank refills (never believe a MID - not that I've got one anyway)
Title: Re: TD Fuel Consumption (still)
Post by: Kevin Wood on 22 January 2009, 09:42:49
At the end of the day it's getting through more fuel than the MID says, so either it's leaking (checked) or it's injecting more fuel than it thinks, which points to a bad injector.

Would it not smoke in the second instance? (I'm asking - my only tractor experience is with small generators and they certainly chuck out some white smoke if they're not burning efficiently)

Do you still have the injectors off the old engine?

Kevin
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 24 January 2009, 09:12:49
Quote
At the end of the day it's getting through more fuel than the MID says, so either it's leaking (checked) or it's injecting more fuel than it thinks, which points to a bad injector.

Would it not smoke in the second instance? (I'm asking - my only tractor experience is with small generators and they certainly chuck out some white smoke if they're not burning efficiently)

Do you still have the injectors off the old engine?

Kevin
In daytime, can't see any smoke in rear view mirror.  At night, in following car's headlights, definately smoke when floored, and a big puff when it changes gear.  Not so bad you can't see car behind, but you can see smoke in passenger wing mirror (exhaust is passenger side) at road level when headlights shine on it.

Sadly, I don't have the donor's injectors - gave away to another tractor owner ages ago.
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 25 January 2009, 19:26:46
Standard (Vauxhall) chip back in. Took for drive, MID claimed I used a gallon, managed 25 miles (admittedly it was ragged most of it).  Not used enough fuel to be able to work out manually, so inconclusive currently.

The only conclusion I can draw is:
Those people who drive a non chipped TD, how do you tolerate it? It must be the slowest car I have ever owned!
Title: Re: TD Fuel Consumption (still)
Post by: Pitchfork on 25 January 2009, 20:05:17
Quote
Standard (Vauxhall) chip back in. Took for drive, MID claimed I used a gallon, managed 25 miles (admittedly it was ragged most of it).  Not used enough fuel to be able to work out manually, so inconclusive currently.

The only conclusion I can draw is:
Those people who drive a non chipped TD, how do you tolerate it? It must be the slowest car I have ever owned!
Like size - speed isn't everything!
The ability to haul large, heavy loads over long distances with minimum of effort & in comfort - that's what's important :)
Title: Re: TD Fuel Consumption (still)
Post by: cem_devecioglu on 25 January 2009, 20:09:37
Thats patience :y

which I dont have :-[
Title: Re: TD Fuel Consumption (still)
Post by: Omegatoy on 25 January 2009, 23:09:40
Quote
Standard (Vauxhall) chip back in. Took for drive, MID claimed I used a gallon, managed 25 miles (admittedly it was ragged most of it).  Not used enough fuel to be able to work out manually, so inconclusive currently.

The only conclusion I can draw is:
Those people who drive a non chipped TD, how do you tolerate it? It must be the slowest car I have ever owned!

lololololol know what you mean!! however by your own admission you ragged it most of the way, now mine starts drinking it over 3500 rpm
but its a manual so i can keep under it through the gears, may i suggest you put a brick under the throttle pedal :o for a short while just to see if not using the revs helps??? in other words let the torque of the diesel do the job rather than driving it like a petrol??? still think its the parasitic losses of the auto doing your consumption tho!!
however on a long  motorway run where the auto lockup tc comes into play, it should be better on fuel than a manual in theory!!!
when i came down from santander to here in december i made 658 miles before i chickened out and filled it up again!!! that was at a resonably steady 75 to 85mph all the way only came out of top ear at junctions and through Madrid !!
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 26 January 2009, 10:27:27
Quote
Quote
Standard (Vauxhall) chip back in. Took for drive, MID claimed I used a gallon, managed 25 miles (admittedly it was ragged most of it).  Not used enough fuel to be able to work out manually, so inconclusive currently.

The only conclusion I can draw is:
Those people who drive a non chipped TD, how do you tolerate it? It must be the slowest car I have ever owned!

lololololol know what you mean!! however by your own admission you ragged it most of the way, now mine starts drinking it over 3500 rpm
but its a manual so i can keep under it through the gears, may i suggest you put a brick under the throttle pedal :o for a short while just to see if not using the revs helps??? in other words let the torque of the diesel do the job rather than driving it like a petrol??? still think its the parasitic losses of the auto doing your consumption tho!!
however on a long  motorway run where the auto lockup tc comes into play, it should be better on fuel than a manual in theory!!!
when i came down from santander to here in december i made 658 miles before i chickened out and filled it up again!!! that was at a resonably steady 75 to 85mph all the way only came out of top ear at junctions and through Madrid !!
Nope, the brick most definately belongs on top of the pedal. Esp now its unchipped  :'(
Title: Re: TD Fuel Consumption (still)
Post by: Seth on 26 January 2009, 12:20:31
Omegatoy's got it spot-on .....
IN THEORY - the auto-boxed evrsion should be better than a manual.
But it's purely theory, I've yet to come across an auto that's more economical generally. As he rightly states, when an auto is in 'lock-up' mode, it's the absolute optimum.
Title: Re: TD Fuel Consumption (still)
Post by: Omegatoy on 26 January 2009, 17:33:06
Quote
Omegatoy's got it spot-on .....
IN THEORY - the auto-boxed evrsion should be better than a manual.
But it's purely theory, I've yet to come across an auto that's more economical generally. As he rightly states, when an auto is in 'lock-up' mode, it's the absolute optimum.

thats why i hate the damn sludge pumps!! very nice to drive but the fuel penalty just aint worth it, and when they go wrong usually have to replace the whole thing, whereas with a manual just do the clutch every 100 to 150k and thats it!! TB drove mine a few weeks ago and the second thing he said was I WANT A MANUAL :y first thing he said was hmm not used to a third pedal!! ::)
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 26 January 2009, 17:37:05
Quote
Quote
Omegatoy's got it spot-on .....
IN THEORY - the auto-boxed evrsion should be better than a manual.
But it's purely theory, I've yet to come across an auto that's more economical generally. As he rightly states, when an auto is in 'lock-up' mode, it's the absolute optimum.

thats why i hate the damn sludge pumps!! very nice to drive but the fuel penalty just aint worth it, and when they go wrong usually have to replace the whole thing, whereas with a manual just do the clutch every 100 to 150k and thats it!! TB drove mine a few weeks ago and the second thing he said was I WANT A MANUAL :y first thing he said was hmm not used to a third pedal!! ::)
Can't deny yours went better than mine.  Terry's (formally Aidy's) old white estate with 427 ecu went like the clappers as well.

I kinda miss manuals, but still detest the Omega manual box....
Title: Re: TD Fuel Consumption (still)
Post by: Pitchfork on 26 January 2009, 18:49:11
You boy racers!! ::) ::)
Title: Re: TD Fuel Consumption (still)
Post by: Omegatoy on 26 January 2009, 22:34:00
Quote
Quote
Quote
Omegatoy's got it spot-on .....
IN THEORY - the auto-boxed evrsion should be better than a manual.
But it's purely theory, I've yet to come across an auto that's more economical generally. As he rightly states, when an auto is in 'lock-up' mode, it's the absolute optimum.

thats why i hate the damn sludge pumps!! very nice to drive but the fuel penalty just aint worth it, and when they go wrong usually have to replace the whole thing, whereas with a manual just do the clutch every 100 to 150k and thats it!! TB drove mine a few weeks ago and the second thing he said was I WANT A MANUAL :y first thing he said was hmm not used to a third pedal!! ::)
Can't deny yours went better than mine.  Terry's (formally Aidy's) old white estate with 427 ecu went like the clappers as well.

I kinda miss manuals, but still detest the Omega manual box....

quote this gearbox isnt bad!!unquote your exact words sir when the test drive degenerated into a lets fling it round the back lanes joyride!!!!  ;D know what your saying bout Adys old one did go well but it took me and terry 6 months to persuade him to let us chip it, when we finaly did he couldnt keep off the loud pedal and complained that the damn thing was drinking diesel but he went everywhere flat out!!! :-[
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 27 January 2009, 22:08:17
Quote
Quote
Quote
Quote
Omegatoy's got it spot-on .....
IN THEORY - the auto-boxed evrsion should be better than a manual.
But it's purely theory, I've yet to come across an auto that's more economical generally. As he rightly states, when an auto is in 'lock-up' mode, it's the absolute optimum.

thats why i hate the damn sludge pumps!! very nice to drive but the fuel penalty just aint worth it, and when they go wrong usually have to replace the whole thing, whereas with a manual just do the clutch every 100 to 150k and thats it!! TB drove mine a few weeks ago and the second thing he said was I WANT A MANUAL :y first thing he said was hmm not used to a third pedal!! ::)
Can't deny yours went better than mine.  Terry's (formally Aidy's) old white estate with 427 ecu went like the clappers as well.

I kinda miss manuals, but still detest the Omega manual box....

quote this gearbox isnt bad!!unquote your exact words sir when the test drive degenerated into a lets fling it round the back lanes joyride!!!!  ;D know what your saying bout Adys old one did go well but it took me and terry 6 months to persuade him to let us chip it, when we finaly did he couldnt keep off the loud pedal and complained that the damn thing was drinking diesel but he went everywhere flat out!!! :-[
Now nobody would believe I would do that ::)

Title: Re: TD Fuel Consumption (still)
Post by: MartinTD on 28 January 2009, 19:26:28
Hi all I am new here but thought I would add my fuel consumption figures. around town I get 29mpg but on a run I have got 45mpg but usually 42MPG this is a 2.5TD Auto with 128K on the clock. Mixture of cruising and sports mode. :y
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 28 January 2009, 19:29:02
Quote
Hi all I am new here but thought I would add my fuel consumption figures. around town I get 29mpg but on a run I have got 45mpg but usually 42MPG this is a 2.5TD Auto with 128K on the clock. Mixture of cruising and sports mode. :y
thats what I would expect unchipped, 30 around town, 40 on a decent steady run
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 29 January 2009, 18:50:51
Still too early to draw conclusion, but I hope the economy is fantastic now, seeing as driving an unchipped tractor has turned me into Little Miss Daisy  :-[
Title: Re: TD Fuel Consumption (still)
Post by: MickAP on 29 January 2009, 19:48:54
Quote
Still too early to draw conclusion, but I hope the economy is fantastic now, seeing as driving an unchipped tractor has turned me into Little Miss Daisy  :-[

Would a knackered themostat  cause my TD to drink more diesel.
Thinking mine seems to be a bit heavy on consumption just lately, but the temp gauge hardly moves, been like it for ages now and only ever gets up to normal when I have the van in tow........BTW it's chipped as well.

Mick
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 29 January 2009, 20:14:09
Quote
Quote
Still too early to draw conclusion, but I hope the economy is fantastic now, seeing as driving an unchipped tractor has turned me into Little Miss Daisy  :-[

Would a knackered themostat  cause my TD to drink more diesel.
Thinking mine seems to be a bit heavy on consumption just lately, but the temp gauge hardly moves, been like it for ages now and only ever gets up to normal when I have the van in tow........BTW it's chipped as well.

Mick
yes
Title: Re: TD Fuel Consumption (still)
Post by: Omegatoy on 29 January 2009, 20:23:25
Quote
Still too early to draw conclusion, but I hope the economy is fantastic now, seeing as driving an unchipped tractor has turned me into Little Miss Daisy  :-[

lol can see the resemblance!!!! ;D
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 09 February 2009, 10:27:45
Right, over a tank, with the std chip in, the fuel computer is dead accurate, and it returned a piss poor 29mpg, and managed approx 450 miles.  I have been Miss Daisy though.

That MPG is similar to what I get with the chip in (around 30mpg, 450 to a tank) with my lead boot, though fuel computer reads around 40mpg.

I used to get high 30s out of it (pre chipped).

I'm confused, as normal....
Title: Re: TD Fuel Consumption (still)
Post by: Seth on 09 February 2009, 11:18:32
Quote
Right, over a tank, with the std chip in, the fuel computer is dead accurate, and it returned a piss poor 29mpg, and managed approx 450 miles.  I have been Miss Daisy though.

That MPG is similar to what I get with the chip in (around 30mpg, 450 to a tank) with my lead boot, though fuel computer reads around 40mpg.

I used to get high 30s out of it (pre chipped).




I'm confused, as normal....

What about refitting the chip, brimming the tank, and measuring the MPG again? Bit of a pain I know, probably the only accurate way of measuring consumption. Still 30mpg from a chipped auto tractor ain't bad Jamie - considering your 'leaded' right foot .... !
I've also noticed my tractor seems thirstier recently too. Could be the cold weather, although it warms-up reasonably normally. Hmmmm?
Title: Re: TD Fuel Consumption (still)
Post by: MickAP on 09 February 2009, 11:46:25
What you two have described about your TD's is exactly how mine is at the moment.............mine has a knackered stat though so hoping to sort that soon and things improve.

Cold weather starting and short journeys can't be helping though, although I don't use mine that much these days.

Mick
Title: Re: TD Fuel Consumption (still)
Post by: Seth on 09 February 2009, 11:57:16
Quote
What you two have described about your TD's is exactly how mine is at the moment.............mine has a knackered stat though so hoping to sort that soon and things improve.

Cold weather starting and short journeys can't be helping though, although I don't use mine that much these days.

Mick

Agreed Mick - cold weather, short stop/start journeys and a knackered 'stat = ineffective combustion and increased fuel consumption.
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 09 February 2009, 12:56:03
Quote
Quote
Right, over a tank, with the std chip in, the fuel computer is dead accurate, and it returned a piss poor 29mpg, and managed approx 450 miles.  I have been Miss Daisy though.

That MPG is similar to what I get with the chip in (around 30mpg, 450 to a tank) with my lead boot, though fuel computer reads around 40mpg.

I used to get high 30s out of it (pre chipped).




I'm confused, as normal....

What about refitting the chip, brimming the tank, and measuring the MPG again? Bit of a pain I know, probably the only accurate way of measuring consumption. Still 30mpg from a chipped auto tractor ain't bad Jamie - considering your 'leaded' right foot .... !
I've also noticed my tractor seems thirstier recently too. Could be the cold weather, although it warms-up reasonably normally. Hmmmm?
I know the (real) MPG of the chip.  Around 30mpg.

Unchipped, driving slowly, is disappointing, esp considering there was a 130m trip to Reading and back...

When I first got it, I could easily manage 35-37mpg, and that was with a knackered HG/head...
Title: Re: TD Fuel Consumption (still)
Post by: platty on 09 February 2009, 13:01:51
All the situations in this thread appear to relate to my car too!

I have got a knackered stat, so over these cold few months the TD has been drinking diesel as the temp never exceeds 87.5 (running w/o viscous).

I have been getting 500 miles to a tank (not hanging around - but some steady), whereas in the summer as getting 600.

When going properly in right conditions I would get 40ish average with 50 on a run (from the MID so 2-3 less in reality, IME) - I think this is about the benchmark for manuals.

It is difficult to compare chipped and non-chipped consumption under the same driving conditions simply because your driving style changes so much!
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 09 February 2009, 13:18:05
Quote
All the situations in this thread appear to relate to my car too!

I have got a knackered stat, so over these cold few months the TD has been drinking diesel as the temp never exceeds 87.5 (running w/o viscous).

I have been getting 500 miles to a tank (not hanging around - but some steady), whereas in the summer as getting 600.

When going properly in right conditions I would get 40ish average with 50 on a run (from the MID so 2-3 less in reality, IME) - I think this is about the benchmark for manuals.

It is difficult to compare chipped and non-chipped consumption under the same driving conditions simply because your driving style changes so much!
Stat dead easy, esp if you have already disposed of that gay viscous!  30mins tops, and 5 mins of that is refilling coolant ;D
Title: Re: TD Fuel Consumption (still)
Post by: platty on 09 February 2009, 13:20:36
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Stat dead easy, esp if you have already disposed of that gay viscous!  30mins tops, and 5 mins of that is refilling coolant ;D

Didn't think it would be too bad, just haven't fancied freezing my arse off doing it yet! Will probably have a crack in the next couple of weeks.  :y
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 09 February 2009, 13:22:20
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Stat dead easy, esp if you have already disposed of that gay viscous!  30mins tops, and 5 mins of that is refilling coolant ;D

Didn't think it would be too bad, just haven't fancied freezing my arse off doing it yet! Will probably have a crack in the next couple of weeks.  :y
WHat are you like - I was changing tractor's oil last night in the snow ;D
Title: Re: TD Fuel Consumption (still)
Post by: platty on 09 February 2009, 13:30:06
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Quote
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Stat dead easy, esp if you have already disposed of that gay viscous!  30mins tops, and 5 mins of that is refilling coolant ;D

Didn't think it would be too bad, just haven't fancied freezing my arse off doing it yet! Will probably have a crack in the next couple of weeks.  :y
WHat are you like - I was changing tractor's oil last night in the snow ;D

Well, I'm not quite that hardcore!! You just reminded me that mine needs the oil doing too - bugger.
Title: Re: TD Fuel Consumption (still)
Post by: MickAP on 09 February 2009, 17:05:42
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Right, over a tank, with the std chip in, the fuel computer is dead accurate, and it returned a piss poor 29mpg, and managed approx 450 miles.  I have been Miss Daisy though.

That MPG is similar to what I get with the chip in (around 30mpg, 450 to a tank) with my lead boot, though fuel computer reads around 40mpg.

I used to get high 30s out of it (pre chipped).

I'm confused, as normal....

BTW...... does it still chuck out loads of smoke now that you've swopped the chip back over. Mine's better since I give up using Sainsburys city diesel.

Mick
Title: Re: TD Fuel Consumption (still)
Post by: Seth on 09 February 2009, 18:06:53
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Right, over a tank, with the std chip in, the fuel computer is dead accurate, and it returned a piss poor 29mpg, and managed approx 450 miles.  I have been Miss Daisy though.

That MPG is similar to what I get with the chip in (around 30mpg, 450 to a tank) with my lead boot, though fuel computer reads around 40mpg.

I used to get high 30s out of it (pre chipped).

I'm confused, as normal....

BTW...... does it still chuck out loads of smoke now that you've swopped the chip back over. Mine's better since I give up using Sainsburys city diesel.

Mick

Come to think of it, I've noticed the same smoke reduction too.
For the past few weeks, the 'tractor' has been running on Shell diesel from a local garage. Deffo less emissions!

Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 09 February 2009, 18:20:27
all supermarket fuel is crap, and will make your tractors smoke!
Title: Re: TD Fuel Consumption (still)
Post by: Seth on 09 February 2009, 18:33:54
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all supermarket fuel is crap, and will make your tractors smoke!

Spot on again Jamie!
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 20 February 2009, 22:25:21
OK, couldn't bear it any longer, the chip went back in today.

Using the car unchipped for last few weeks, the fuel computer was bang on accuracy wise, and was returning around 29mpg :o

Done one trip since refitting chip today, with following results on the computer (which I think is 'dangle berries', and I think I now know why)

(http://theboy.omegaowners.com/oofpics/project_tb2/IMAGE_093.jpg)
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 20 February 2009, 22:29:06
Should add that was a high speed run at times ::)
Title: Re: TD Fuel Consumption (still)
Post by: Omegatoy on 20 February 2009, 22:30:12
 :y wondered how soon you would last!!! do tell then :y
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 20 February 2009, 22:32:14
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:y wondered how soon you would last!!! do tell then :y
I can't see how people can drive a tractor in standard form. Its horrible.

I suspect, chipped, it will return similar economy (30mpg) even though its driven much more enthusiastically...
Title: Re: TD Fuel Consumption (still)
Post by: Entwood on 20 February 2009, 22:34:44
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:y wondered how soon you would last!!! do tell then :y
I can't see how people can drive a tractor in standard form. Its horrible.

I suspect, chipped, it will return similar economy (30mpg) even though its driven much more enthusiastically...

Then why was the consumption so bad you took the chip out ???

Just intrigued really ...  :)
Title: Re: TD Fuel Consumption (still)
Post by: VXL V6 on 20 February 2009, 22:37:53
Lol

Trip distance 55.7 Miles, Average speed 51 Mph......

Title: Re: TD Fuel Consumption (still)
Post by: feeutfo on 21 February 2009, 00:05:02
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Lol

Trip distance 55.7 Miles, Average speed 51 Mph......


Presume to re learn? Got to teach it a lesson!
But does TB live on a motorway slip road? I give mine a poke and its a job to get the mph average above 40!


Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 21 February 2009, 10:12:09
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Quote
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:y wondered how soon you would last!!! do tell then :y
I can't see how people can drive a tractor in standard form. Its horrible.

I suspect, chipped, it will return similar economy (30mpg) even though its driven much more enthusiastically...

Then why was the consumption so bad you took the chip out ???

Just intrigued really ...  :)
Went back to the standard chip to see what the real v MID consumption was like...
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 21 February 2009, 10:13:20
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Lol

Trip distance 55.7 Miles, Average speed 51 Mph......

::)
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 21 February 2009, 10:14:32
My old preferred route to commute to work actually dropped below 30mph average - hence I changed to a longer, but usually quicker route
Title: Re: TD Fuel Consumption (still)
Post by: MickAP on 21 February 2009, 12:45:09
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OK, couldn't bear it any longer, the chip went back in today.

Using the car unchipped for last few weeks, the fuel computer was bang on accuracy wise, and was returning around 29mpg :o

Done one trip since refitting chip today, with following results on the computer (which I think is 'dangle berries', and I think I now know why)

(http://theboy.omegaowners.com/oofpics/project_tb2/IMAGE_093.jpg)

I think mine also tells me a load of b@ll@x as well (chipped) and similar MPG figures, so please tell why!

Mick
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 23 February 2009, 19:24:16
I had every intention of filling car back up and manually calculating consumption today, but the rather idiots at our local tescos pissed me off, so left the forecourt, leaving 10000 miles of rubber with them  >:(
Title: Re: TD Fuel Consumption (still)
Post by: Omegatoy on 23 February 2009, 19:43:47
tesco fuel????? ye gods the consumption will be terrible!!!
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 23 February 2009, 21:13:18
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tesco fuel????? ye gods the consumption will be terrible!!!
I get angry every time I have to deal with the retards in the BP, so Tescos was the only other option, next nearest is a 12m round trip (Esso at Baynards Green)
Title: Re: TD Fuel Consumption (still)
Post by: Seth on 23 February 2009, 22:39:22
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I had every intention of filling car back up and manually calculating consumption today, but the rather idiots at our local tescos pissed me off, so left the forecourt, leaving 10000 miles of rubber with them  >:(

Calm down Jamie fella, we got the same dickos in Tescos down here.

If possible, I tend to refuel the tractor in a nearby Shell garage for the same price per litre.
Car seems to run happier, and definately less emissions too!
Title: Re: TD Fuel Consumption (still)
Post by: Kevin Wood on 23 February 2009, 23:02:33
They sound like the staff in my local one who tell me "you know that's LPG?" every time I go to pay...  ::)

Do they really think I might have managed to accidentally fill a petrol tank with LPG? ;D

Kevin


Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 24 February 2009, 19:21:20
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They sound like the staff in my local one who tell me "you know that's LPG?" every time I go to pay...  ::)

Do they really think I might have managed to accidentally fill a petrol tank with LPG? ;D

Kevin


I didn't even get as far as talking to the staff...

...its a diesel, so looked for gloves. None. Anywhere.  So looked for paper towels. None. Anywhere.  oppsit, I'll get covered in diesel, no probs, inserted card for pay at pump. No, not working.  Looked at people queuing out of kiosk (5p off vouchers), sod queuing - I'd queued in PO for 40mins to post some oof bits, and inBarclays for 15m to pay in cheque.

I'm embarrassed to say Mr Angry came out...
Title: Re: TD Fuel Consumption (still)
Post by: TheBoy on 06 March 2009, 08:41:42
OK, just had to fill it back up:

Computer: 38
Reality: 32

 :'(