Omega Owners Forum
Chat Area => General Car Chat => Topic started by: JamesV6CDX on 06 February 2012, 19:09:42
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I have a 3.2 Auto MV6 with the Stag 300 set up.
On a recent run, to WIM, over to Gosport, back home, and then to Dudley and back the next day... mostly motorway or dual carriageway at national speed limit - from full to empty, I managed to get exactly 380 miles to a tank, which was filled with 79 litres of LPG.
I work this out as being a shade under 22mpg. Driving was careful, no sport mode or kickdown, with a few spells of overtaking, all around national speed limit.
How does this compare with yours?
Cheers,
James
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I get about 17mpg from mine.
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That sounds bloody good mate!
When I picked my mig up, drove back pretty much all motorway and used about £70 of petrol covering 320miles or there abouts :-\
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That sounds bloody good mate!
When I picked my mig up, drove back pretty much all motorway and used about £70 of petrol covering 320miles or there abouts :-\
So therefore, 380 miles to £60 of LPG, doesn't mean THAT much of a saving, against running on petrol :-\
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That sounds bloody good mate!
When I picked my mig up, drove back pretty much all motorway and used about £70 of petrol covering 320miles or there abouts :-\
So therefore, 380 miles to £60 of LPG, doesn't mean THAT much of a saving, against running on petrol :-\
I get about 350 miles to £100 of petrol. I reckon I save about a 1/3rd, which is the expected saving
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The way I see it, is this.
On this run, on petrol, I would have got 32mpg. No if's or buts - I've done that sort of route many times, and calculated that economy myself (not relying on mid).
So - If I do the trip I described on petrol, at 32mpg:
380 miles, at 32 mpg, requires 11.88 gallons - which is 54.03 litres. At 131.9p per litre, this is £71.27, which works out at 18.75p per mile
If I do the trip described on LPG, at 22mpg:
380 miles, at 22mpg, requires 17.27 gallons - which is 78.59 litres. At 77.0p per litre (cost of LPG here) this is £61.22, which works out at 16.11p per mile
SO over the course of the trip, I have saved £10.05
For each mile running on LPG, I save 2.64 pence
Surely this highlights, the LPG saving, is not *THAT* good, anymore?
I know for sure some will say 32mpg is too optimistic - it's not - I know my car, and I know this is what it would do.
Seems that, on the above figures, 31.25% is the economy loss on gas. Is the general concensus not 10 to 15%?
Maybe something is up with my LPG?
No faults in the engine ECU, runs like a dream on either fuel.
Hence asking for your comparisons :y
Cheers,
James
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That sounds bloody good mate!
When I picked my mig up, drove back pretty much all motorway and used about £70 of petrol covering 320miles or there abouts :-\
So therefore, 380 miles to £60 of LPG, doesn't mean THAT much of a saving, against running on petrol :-\
An extra 60+ miles for at least £10 cheaper is a good saving in my book still :y
79 ltrs lpg @ 70p p/ltr = £55.30 for 380 miles
£70 petrol for 320 miles
Nowt wrong with that in my view :y
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I dream for 32mpg. Never, ever managed that from my 3.2. Ever.
I have noticed that driving style doesn't have as much effect on LPG. Also, 3.0 seems to be more economical than 3.2, petrol or gas...
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I dream for 32mpg. Never, ever managed that from my 3.2. Ever.
I have noticed that driving style doesn't have as much effect on LPG. Also, 3.0 seems to be more economical than 3.2, petrol or gas...
I would agree with your second line TB :y
The question is purely academic... I don't really care about the MPG, if I did, I wouldn't have a 3.2 ;D
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I never ever got anything like 32 mpg on petrol .. even on a long run driving like miss daisy... but on a long run on LPG (solo) I have regularly achieved 24 mpg.
I still reckon I'm running at a saving of around 10p per mile, and thats over 40,000 miles and slightly under 4 years.
:)
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Seen 32 out of my 3.2, but that was with a genuine exhaust fitted ::)
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Seen 32 out of my 3.2, but that was with a genuine exhaust fitted ::)
Less with a stainless?
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More to do with a single pipe after the cats instead of two pipes I think.
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I regularly see 32 and at best 35.9 out of my manual 2.6, albeit I know it's missing 578cc ::)
I wonder what the factory fitted 'dual fuel' Omega's are like, especially how 'factory fitted' the kits really were?
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Hello stranger! :)
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I regularly see 32 and at best 35.9 out of my manual 2.6, albeit I know it's missing 578cc ::)
I wonder what the factory fitted 'dual fuel' Omega's are like, especially how 'factory fitted' the kits really were?
They were shipped off to somewhere in Milton Keynes IIRC.
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I regularly see 32 and at best 35.9 out of my manual 2.6, albeit I know it's missing 578cc ::)
I wonder what the factory fitted 'dual fuel' Omega's are like, especially how 'factory fitted' the kits really were?
They weren't ;) ;)
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James,
Let's be a bit more realistic here... What would the petrol have cost at the same garage you filled up with LPG firstly ::) You've got to compare prices from the same garage, not the most expensive LPG outlet and the cheapest petrol outlet ;)
I've never seen 32mpg out of my 3.2, even when SWMBO does a long motorway run in it.
As per Nigel, my savings are a shade under 10p per litre, always have been and (unless the price of LPG makes a huge jump and close on the petrol price) always will be ;)
Incidentally, that seems very high for LPG in that neck of the woods... It's cheaper than that at my local robbers BP, which is always at least 5p more than the cheaper outlets I use :o
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James,
Let's be a bit more realistic here... What would the petrol have cost at the same garage you filled up with LPG firstly ::) You've got to compare prices from the same garage, not the most expensive LPG outlet and the cheapest petrol outlet ;)
My prices were both from the same garage mate. Shell in Cheltenham. It's the only one I ever use, usually. So, for my situation, is totally realistic ;)
I've never seen 32mpg out of my 3.2, even when SWMBO does a long motorway run in it.
I have achieved it on a few occasions, on a sensible, long run...
Incidentally, that seems very high for LPG in that neck of the woods... It's cheaper than that at my local robbers BP, which is always at least 5p more than the cheaper outlets I use :o
77.9p per litre is the cheapest I can get it, in Cheltenham :(
In Bristol / Cardiff, it's 67.9, but I rarely go to either of those places, anymore , so pay top whack for LPG :(
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In that case, there is an issue at your local LPG supplier (they're robbing gits!) ::) ;D
I do wonder if there is something slightly adrift with the setup :-\ :-\ If you reckon you'd have got 32mpg on petrol, that's what the MID should read even though you were running on LPG (as the petrol injection times should have been the same ;)) :-\
I had to re-calibrate and re-map another member's 3.2 over the weekend because he was having very poor economy and the pressure had shot up causing rough idling and a very poor map... Put it all back to how it should be (1.1 BAR) and it's running sweet as a nut again ;)
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Totally agree mate... if I was paying 10p a litre less for the LPG, like some members here are, I'd be laughing and the savings margin would be a lot higher...
In LPGs defence, this example was based on a long run. locally, I get 18mpg on petrol, and 15 on gas - which, is obviously a very good saving - so worth having the LPG just for that.
Whilst I do maintain that usually I can get 32, on a steady run... the MID on this occasion was just under 29mpg. So, I guess 22 on petrol is, somewhere near right. :)
Edited to add - my pressure also runs at 1.1 bar :y
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James .. have you considered a "countrywide" account ??? Not sure if any of their outlets are near you ..
http://www.countrywidefarmers.co.uk/pws/Content.ice?page=EnergyAutogas&pgForward=businesscontentbasic#
but they are the cheapest in Swindon where the number of outlets is very limited .. and so expensive !! Presently I pay 73.92 p/litre including the dreaded
Usefully you can use their pumps 24/7
I know there is a place in Gloucester as I've used it ... not sure how close to you it is but there is a map on the site I've linked to.
HTH
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James .. have you considered a "countrywide" account ??? Not sure if any of their outlets are near you ..
http://www.countrywidefarmers.co.uk/pws/Content.ice?page=EnergyAutogas&pgForward=businesscontentbasic#
but they are the cheapest in Swindon where the number of outlets is very limited .. and so expensive !! Presently I pay 73.92 p/litre including the dreaded
Usefully you can use their pumps 24/7
I know there is a place in Gloucester as I've used it ... not sure how close to you it is but there is a map on the site I've linked to.
HTH
Nige, you star! It's around a mile from me! :y
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I'm averaging 23mpg (petrol) on the MID. That is a mixture of round town and dual carriageway driving. I'm not a speed freak (most days), but I don't drive like Ms Daisy either.
I'm happy with that considering what she is ::) :y
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On my 2.6, the run to/from work, M62/M60/M62 :P I used to get about 30mpg on petrol. I currently get, around 27.5 according to the MID, which translates to 23/24/25 actual MPG on LPG. That's a fair old drop. It is possible she would benefit from re-setting up, gas pressure may be a bit too high, but......
Ken
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Interestingly enough, I filled up at a Flogas station recently, and the tank took about 4.5 L less from empty to shut off compared to my usual. Hmmmm
ken
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On my 2.6, the run to/from work, M62/M60/M62 :P I used to get about 30mpg on petrol. I currently get, around 27.5 according to the MID, which translates to 23/24/25 actual MPG on LPG. That's a fair old drop. It is possible she would benefit from re-setting up, gas pressure may be a bit too high, but......
Ken
That means that the LPG isn't set up 100% right... It shouldn't change the reading on the MID when changing fuel if the petrol injector times are stable... I think it means that it's running a little lean on LPG (relatively) so either the nozzles need to be a smidge larger or the pressure needs upping a touch ;)
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Pah, 32? I've seen near 35mpg from my 3.2....
http://dl.dropbox.com/u/803897/Omega/TheChav/Photo%2020-11-2011%2015%2054%2037.jpg (http://dl.dropbox.com/u/803897/Omega/TheChav/Photo%2020-11-2011%2015%2054%2037.jpg)
That kind of run you describe though, I'd see more 29/30mpg I think. I'm still not sure about LPG'ing the 3.2, boot space back is good, and I no longer do the miles to justify it. I've done maybe 1,500 miles since I got it 6 months ago, but then again, I can't see myself ever selling it, so maybe its best to get it done :-\
2.2, easily paid its LPG cost back, but I was doing 500 miles a week then.
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Pah, 32? I've seen near 35mpg from my 3.2....
http://dl.dropbox.com/u/803897/Omega/TheChav/Photo%2020-11-2011%2015%2054%2037.jpg (http://dl.dropbox.com/u/803897/Omega/TheChav/Photo%2020-11-2011%2015%2054%2037.jpg)
That kind of run you describe though, I'd see more 29/30mpg I think. I'm still not sure about LPG'ing the 3.2, boot space back is good, and I no longer do the miles to justify it. I've done maybe 1,500 miles since I got it 6 months ago, but then again, I can't see myself ever selling it, so maybe its best to get it done :-\
2.2, easily paid its LPG cost back, but I was doing 500 miles a week then.
TBH, I'm not sure I'd convert mine if I was making the decision now... I think it's done 300 miles, perhaps a shade over, in the last 3 months ::) But things will change and I'll have someone else in the van for at least 4 days in 8 so the car will see some use again :y Fortunately I've done a shade over 11k since converting it so it has already paid for itself and saved me a little so there's no loss to be made there :y :y
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While were on the subject of LPG Paul - the BP near the footbal ground saga continues.After we last discussed it in a thread I went and filled up there and it took about what I would expect. Filled up there again a week ago and it only took £17 to fill the car up,having done 172 miles since last filled - result ! :)..............went back yesterday,had done 180 miles since last fill up.It took just under 59 litres despite the tank not being empty !! - I honestly think theres something loose inside the pump or something, as its totally unpredictable. ::)
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While were on the subject of LPG Paul - the BP near the footbal ground saga continues.After we last discussed it in a thread I went and filled up there and it took about what I would expect. Filled up there again a week ago and it only took £17 to fill the car up,having done 172 miles since last filled - result ! :)..............went back yesterday,had done 180 miles since last fill up.It took just under 59 litres despite the tank not being empty !! - I honestly think theres something loose inside the pump or something, as its totally unpredictable. ::)
Could be the float/shutoff on the Multi-valve playing up :-\ :-\ Having seen the standard of the rest of the installation, I wouldn't be surprised if it's a fitting error ::) Perhaps we'll have a look in the warmer weather ;) Needs to be empty of LPG though if we're going to pull the MV out
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While were on the subject of LPG Paul - the BP near the footbal ground saga continues.After we last discussed it in a thread I went and filled up there and it took about what I would expect. Filled up there again a week ago and it only took £17 to fill the car up,having done 172 miles since last filled - result ! :)..............went back yesterday,had done 180 miles since last fill up.It took just under 59 litres despite the tank not being empty !! - I honestly think theres something loose inside the pump or something, as its totally unpredictable. ::)
Could be the float/shutoff on the Multi-valve playing up :-\ :-\ Having seen the standard of the rest of the installation, I wouldn't be surprised if it's a fitting error ::) Perhaps we'll have a look in the warmer weather ;) Needs to be empty of LPG though if we're going to pull the MV out
It doesnt behave strangely at my usual garage at Heybridge though. I can predict within a few litres how much it will take every time I go there. :-\
The front end definitely needs a good sort out though,as you know.And I would at some point like to recheck that the mapping etc. as still ok,more for peace of mind than anything else really. I tried plugging the interface thingy in a few weeks ago, but it no longer seems to work for some reason. :-\...............so a visit from yourself in the summer would be most welcome. :y Although I will probably see you before that anyway. ;) and your still welcome to call in for a cuppa if Im at work and your fed up driving up and down the A12. :y