Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: SilverSurfer on 11 February 2010, 15:29:21
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Anyone have any idea why i'm only averaging around 15mpg when i'm driving the car really easy and not revving at all hardly. I had an m3 that was better on petrol than this and various other cars including a 5.5 litre AMG merc??
The car is running fine can't find any fault, just really really poor mpg. Yesterday I put in £20 i've done 65 miles and the petrol light is blinking, now thats not just thirsty it's insane for a 2.5 litre. :o :'(
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Is it getting up to temp?
Valve timing correct?
Ignition system in good order?
Brakes Binding?
Leak?
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I could get 36 to the gallon out of my old 3.0...
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Is it getting up to temp?
Valve timing correct?
Ignition system in good order?
Brakes Binding?
Leak?
No leaks, brakes ok, dunno about valve timing, dunno about ignition sys, temp seems ok i mean the car seems fine to me although i'm no expert so that's not to say there ain't a problem but it really does seem ok apart from the MPG
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Where are you located?
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Just got back from Dudley, and on the round trip in all types of traffic conditions mine just averaged 27 mpg, and it has just been fully serviced. Normally I only get 18, but I only do a couple of very short return trips a day of around 5 miles each.
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Is it getting up to temp?
Valve timing correct?
Ignition system in good order?
Brakes Binding?
Leak?
No leaks, brakes ok, dunno about valve timing, dunno about ignition sys, temp seems ok i mean the car seems fine to me although i'm no expert so that's not to say there ain't a problem but it really does seem ok apart from the MPG
whens the last time air/fuel filter were changed
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As for the servicing i think it was about 6k ago
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Where are you located?
I'm in Ireland at the moment
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I could get 36 to the gallon out of my old 3.0...
Do you not touch the pedal on the right then? :o ;D
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I could get 36 to the gallon out of my old 3.0...
Do you not touch the pedal on the right then? :o ;D
I got around the same outa the 2.6 on 160 mile trip, doing 80 with the cruise on :y Mixture of A roads & motorway
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I could get 36 to the gallon out of my old 3.0...
Do you not touch the pedal on the right then? :o ;D
I got around the same outa the 2.6 on 160 mile trip, doing 80 with the cruise on :y Mixture of A roads & motorway
I would expect to see that on a 2.6, on my work commute (A43/M40/M4) its 95% motorway, and i struggle to get 27mpg with cruise set at 80mph on the 3.0
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So does around 15mpg sound right for one of these around town then?
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So does around 15mpg sound right for one of these around town then?
Is it an Auto?
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So does around 15mpg sound right for one of these around town then?
Is it an Auto?
Yeah
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So does around 15mpg sound right for one of these around town then?
No, you should be getting at least low 20's.
My 2.2 which they say on here should return about the same as the V6 engines gives me around 22mpg on short journeys which I do at the moment.
Longer motorway runs around 34-36mpg :y
Mick
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So does around 15mpg sound right for one of these around town then?
Oop's gremlins in the PC, posted above :D
Mick ;)
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Do you think a service would realistically help any :question
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Something isnt right, i get 24 around town and low 30s on a run in my 3.0.
Would check the easy stuff - air filter, tyre pressures first, if you can take a plug out it would be easy to tell if its running rich as it will be black and sooty.
You sure no one is nicking your petrol? :D
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Something isnt right, i get 24 around town and low 30s on a run in my 3.0.
Would check the easy stuff - air filter, tyre pressures first, if you can take a plug out it would be easy to tell if its running rich as it will be black and sooty.
You sure no one is nicking your petrol? :D
I hope not! i will check those things tomorrow thanks i'll let you know what i find :y
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MPG is also dependant on your right foot ::) if you hammer it 15mpg is certainly possible. I get an avarage of 32mpg with a mix of town, B roads and M way but I dont hammer it off the lights or loads of over taking.
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MPG is also dependant on your right foot ::) if you hammer it 15mpg is certainly possible. I get an avarage of 32mpg with a mix of town, B roads and M way but I dont hammer it off the lights or loads of over taking.
No that was actually nearly hearse driving :'(
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Urban driving in a 2.6 V6 = 17.2mpg. Thats manufacturers figures with a perfectly tuned warm engine,perfect spark plugs etc,maybe even a premium octane fuel. So take a more used vehicle,cold starts,more traffic about and longer waits at light etc and 15mpg wouldnt be unusual.These engines seem to slurp petrol when accelerating so unless your driving at a steady speed for regular stretches or going downhill your mpg will suffer.
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I could get 36 to the gallon out of my old 3.0...
Do you not touch the pedal on the right then? :o ;D
Not with the cruise set at 70 on a run... :) MutantCav has her now, and this Golf doesn't do much better...
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i used to get 80 miles out of £20 when i had my 3L auto, that was i mixture of half and half motorway and town, the trip comp display was broke so i could never know what i was doing exactly but i think it worked out at around 20 mpg, that was really the only reason i got rid of it and bought a 2.2 dti.
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Sounds just as shocked as I was when I first purchased mine. I used to get around that, but have since found you have to have a right foot as light as a feather. I gave up in the end as some people claim 36mpg others 25mpg. I do mostly driving around town. Car speed average is 25mph. I get around 19 mpg at the moment.
Car runs fine. Even replaced things that did not need replacing. ( Some old codes that were still present on the old computer.) >:(
You'll just have to get used to driving it with softer slippers on. Put £20 in her and its only done around 30 miles before the fuel light pops back on :y
I do love the car but it will have to go sooner or later as they do like a drink ;D
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Does it feel like it is running at full power?
Mine has had cat issues which stuff the economy and makes the power feel less.
Any cat rattles, rich fuel smell out of tail-pipe, variations in power delivery?
I was getting 30+mpg out of my 2.2, but we think the secondhand replacement cat is failing again and we are down to 25odd mpg.
Just a thought :y
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I had no idea these where so un fuel effecient engines they are way worse than bmws and mercs with even bigger engines :question how can vauxhall not make these better :question as i said before i had an e46 M3 and got more mpg than this and that was driving it sporty. AH well i still like it though just dunno how long I can afford to keep it now.
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The engine is actually pretty fuel efficient, closed loop lambda control ensures this, and it produces a decent amount of power for its size.
The "problem" - if one actually exists - is that the car weighs between 1500 Kg and 2000 Kg depending if you use page 223 or 224 !!
http://homepage.ntlworld.com/andrew.reynolds983/Manuals/Omega2002Manual.pdf
You start throwing that weight around with the grunt and acceleration the Omega has .. and it uses fuel ... period.
The "upside" is you are sat in a luxury barge with a tremendous amount of safety protection around you .. :)
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Mines a manual I get 26mpg around town that being a dive into London down M1 and around the A406 to Hanger Lane in the morning rush. Those that know this route know what it's like >:( :'( at the best of times.
As you say you are driving steady 15mpg that you're getting is low in my opinion something isn't right. Check the air filter, all air/fuel/water sensors and make sure the plug wells aren't full of oil this causes shorting and increased fuel consumption also check your brakes aren't binding.
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Mines a manual I get 26mpg around town that being a dive into London down M1 and around the A406 to Hanger Lane in the morning rush. Those that know this route know what it's like >:( :'( at the best of times.
As you say you are driving steady 15mpg that you're getting is low in my opinion something isn't right. Check the air filter, all air/fuel/water sensors and make sure the plug wells aren't full of oil this causes shorting and increased fuel consumption also check your brakes aren't binding.
Ok thanks will do tomorrow :y
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Down the M1 and around the A406 is not "around town",if you can get 26 mpg from ANY petrol omega on the urban cycle you stand to make a fortune as people will pay for your magic secret!
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My daily commute on main roads, I got 28.9mpg today. :y
Driving like a grandad though! ::)
Staying to 50/55mph on the A64, 70 on the dual cabbageway parts of the A64 and 50 mph on the A170.
Bloody hard work, but only five minutes longer than "normal" which sees about 22mpg
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Down the M1 and around the A406 is not "around town",
Too right it's not!!!!! ;)
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mines about 15.7 in town
seen 26 to 27 on motorway have seen it at 31 if drive like quire boy
iv had as low as 11 when i drive it like iv stole it
but on motorway im more likely to be cruseing at 110 that 70
as i was born with a lead foot
runs better on high octaine stuff
get about 19.6 in town on that
had the same with other 3 liter migs if had
so id vote its about right
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short trips in this cold weather drinks a lot of petrol, my trip to work is 3.5 miles and i use about £15 a week, roughly on a long run £15 would get me 120 miles.
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Down the M1 and around the A406 is not "around town",if you can get 26 mpg from ANY petrol omega on the urban cycle you stand to make a fortune as people will pay for your magic secret!
I can see you've never done that route at 6.30 in the morning on a week day then mate ;D its pretty much nose to tail stop/start the whole way with the odd standstill thrown in at regular intervals just for good measure.
My journey is 32 miles takes me on average 1hr 45mins the worst it's ever taken me was 5hrs!!!! If thats not urban driving I don't know what is, its as bad as any route I know of in fact I think it held the record once for being one of the worst anyone remember the Brent cross flyover road works about 5yrs ago?
My average is always around 26 mpg I don’t accelerate hard but find changing down rather than using the V6 grunt is better on fuel as is avoiding 5th gear at under 40mph. I don’t think there is any secret just drive with a light right foot :)
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32 miles in 1 hour 45 mins is avereage speed 18.28 mph. I have 405 miles in my trip computer with an average speed of 22.0 mph. half of the miles covered were motorway cruising up to 80 mph, the rest were what i call urban cycle(around town).
If you are spending periods of this journey nose to tail or stopped then you have to have periods of driving at least up to the motorway speed limit and there are no motorways on an urban cycle.
Out of interest reset the trip computer when you have reached a part of the journey where you are unlikely to get above 30 mph again and let the computer calculate consumption from there to your workplace.
My consumption is reading 21.9 over the last 405 miles.Another 120 mile motorway trip might see that rise to 24-25,another 120 miles urban will probably take it down to 19 ish.
I tried driving economically for a week and it just pissed me off and made me want to sell the car.Now i remember why i bought it in the first place and enjoy every mile!
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Looks like you are going to check all the stuff I did. Binding brakes. Air Leaks. Lambada this and that. Electrics ;D
Everyone appears to get an average between 15 to 36 mpg :D
Just checked my trip since I reset everything beginning of the month. Car has done 365 miles on 17 gallon ;D
I think I have put around £90 in her. Its just off the quarter now showing a range left of 85 miles. Light will be fashing in 40 miles. ( less if I still poodle around town.)
I have now started taking my LD Convoy 2.5 Diesel ( Fully Loaded ) to site visits now. This will atleast do 200 miles on £40 as opposed to 130 in the Mig :y
If you do lots of motorway driving they are okay. I get around 25mpg. Town driving... well I would get shot and buy a 5 litre Merc. ;)
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In my 2.2 on average day to day i get 25-28 mpg :-/.... the best i've ever seen was 37 mpg on a long motorway journey :y
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I know its only a 2.0 16v but I get 17 around town and 30 on a run. Frightening after having a diesel Astra. :o
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Would advise also checking the breathers aren't blocked. Just had mine cleaned today and on my commute route has gone up from 28-32mpg - 19mpg on hilly country lanes (yes we have some hills in Norfolk!) and near 40 on dual-carriageway @ 65 on cruise.
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I've got a 2.6 CDX which struggles to get above 17 around town. On a run it will easily return 32 to 33 mpg. Seems normal to me especially as the manual says 17.8 for the urban cycle.
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2.2 auto short runs to work and back 18.6 on average,ive had it on motorway reset the comp and iirc 37.i traded a sharan in for this doin 44 and i had a omega v6 before and thoght il get the 2.2 this time..yeh same mileage not the same noise tbh im tempted to get another discovery but not in a rush
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I reset my Trip Computer on every LPG fill up... Last one (this morning) was showing 31mpg average. That's around 260 miles of fast A roads (with lots of roundabouts) and Motorways and 50 miles of "Town" driving. Since the LPG conversion I'm not that good at taking it easy on the load pedal, especially away from roundabouts, so I'm pretty pleased :y :y
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Same motor as mine and I get 17-21 around town on avarage depoending on the Leicester traffic which can be, and usually is, horrifc.