Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: hitcho on 11 January 2008, 21:48:25

Title: fuel consumption
Post by: hitcho on 11 January 2008, 21:48:25
hi all only been signed a couple of days the site is great i have a omega 2.5v6 cdx auto i bought it on sunday and find i cant stop looking at the fuel gauge going down the computer shows its doing 20 mpg is this right i never seem to be away from the petrol station cheers all keep up the good work  :y
Title: Re: fuel consumption
Post by: TheBoy on 11 January 2008, 21:52:45
lol, are you hoafing it everywhere?
Title: Re: fuel consumption
Post by: miggy on 11 January 2008, 21:55:08
Hiya mate, I have the 2.6 CDX and i am getting about 18 around town and about 28 on the motorway
Title: Re: fuel consumption
Post by: Andy B on 11 January 2008, 21:55:24
Quote
hi all only been signed a couple of days the site is great i have a omega 2.5v6 cdx auto i bought it on sunday and find i cant stop looking at the fuel gauge going down the computer shows its doing 20 mpg is this right i never seem to be away from the petrol station cheers all keep up the good work  :y

Maybe a little more around town - my 3.0 does around 21/22 - but not much more. If you look at my 'fuel consumption' post in gen chat you find that if careful you might get up to c30mpg
Title: Re: fuel consumption
Post by: motmann on 11 January 2008, 21:57:15
yep thats about right! get on a good out of town run and it will improve.my 3.0ltr will do25/29 on a motorway run. dont forget £20 isnt much fuel these days!! :-?
Title: Re: fuel consumption
Post by: hitcho on 11 January 2008, 21:58:41
lol not really hoofing it took it easy tonight and it went to 22 mpg but i love the sound when it kicks down is there anything i could do to improve mpg apart from gas conversion!!! that would cost more than the car ha ha
Title: Re: fuel consumption
Post by: sassanach on 11 January 2008, 22:00:08
how do you get 22mpg out of a 3litre auto.have you got a raw egg placed on the go pedal?
Title: Re: fuel consumption
Post by: TheBoy on 11 January 2008, 22:00:43
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lol not really hoofing it took it easy tonight and it went to 22 mpg but i love the sound when it kicks down is there anything i could do to improve mpg apart from gas conversion!!! that would cost more than the car ha ha
get a lighter right foot ;D

hopefully, when novelty wears off, economy may improve when you start going a bit more sedately ;)
Title: Re: fuel consumption
Post by: miggy on 11 January 2008, 22:00:51
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Hiya mate, I have the 2.6 CDX and i am getting about 18 around town and about 28 on the motorway

Looking at the answers, looks as though mine is a bit out also
Title: Re: fuel consumption
Post by: VXL V6 on 11 January 2008, 22:06:30
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how do you get 22mpg out of a 3litre auto.have you got a raw egg placed on the go pedal?

Get 22 on my daily commute but can do a lot better on a decent motorway run.

Just don't look at instant consumption when you kick it down up a hill......
Title: Re: fuel consumption
Post by: TheBoy on 11 January 2008, 22:08:50
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how do you get 22mpg out of a 3litre auto.have you got a raw egg placed on the go pedal?
I am currently averaging 23/24mpg from MV6 auto, naff commute to work and back...
Title: Re: fuel consumption
Post by: Andy B on 11 January 2008, 22:17:20
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.......
Just don't look at instant consumption when you kick it down up a hill......

 ;DIt'll only get down to around 7mpg! ;D
Title: Re: fuel consumption
Post by: TheBoy on 11 January 2008, 22:18:40
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Quote
.......
Just don't look at instant consumption when you kick it down up a hill......

 ;DIt'll only get down to around 7mpg! ;D
7.1mpg appears to be hard coded limit on both MID types I've 'really tested' on...
Title: Re: fuel consumption
Post by: Andy B on 11 January 2008, 22:19:53
I was talking to the local A/C specialist who is an ex Jag mech. He still plays with them & has a race prep'd V12 It does about 3mpg :o
Title: Re: fuel consumption
Post by: Andy B on 11 January 2008, 22:22:01
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Quote
Quote
.......
Just don't look at instant consumption when you kick it down up a hill......

 ;DIt'll only get down to around 7mpg! ;D
7.1mpg appears to be hard coded limit on both MID types I've 'really tested' on...

I did say about! ;D Maybe it was my 2.2 Carlton with a 'van on the back I was confused with. ;)
Title: Re: fuel consumption
Post by: MutantCav on 11 January 2008, 22:44:08
The 2.5's I have had have always done 33-35mpg on motorway and a good 28 around town...
Title: Re: fuel consumption
Post by: martin12760460 on 11 January 2008, 22:47:00
18 to20 mpg about right with me but i think i have alight foot  :-/
Title: Re: fuel consumption
Post by: cbowditch on 11 January 2008, 23:12:35
I get about 24mpg from my 3.0 MV6 auto on the daily commute with loads of stop/start traffic. On a motorway run at 65-70mph I can get 32mpg  [smiley=thumbsup.gif]
Title: Re: fuel consumption
Post by: motmann on 11 January 2008, 23:13:35
best i have seen on the MFD was 29 on a run back from cornwall in september more or less a constant 70mph with the cruise control on quite a lot! the worst was,well, dont want to talk about it but the MFD  showed an average speed of 80mph over 250 miles!!
Title: Re: fuel consumption
Post by: Tab on 11 January 2008, 23:20:11
my mfd reckons average about 26mpg at the moment, i get about 100 miles to £20.

does that sound about right? :-/
Title: Re: fuel consumption
Post by: motmann on 11 January 2008, 23:30:14
thats about right tab, my old 4pot auto was'nt great but the 3.0ltr hasnt proved to be the horror story on fuel that a lot of people reckon! ;D
Title: Re: fuel consumption
Post by: albitz on 12 January 2008, 00:32:51
my 2.5 auto averaged 23.5 over the last year,i do a lot of short journeys though. i changed the oil last week and what came out of the filler neck could have kept hellmans supplied for a while!
Title: Re: fuel consumption
Post by: TheBoy on 12 January 2008, 09:05:02
Quote
best i have seen on the MFD was 29 on a run back from cornwall in september more or less a constant 70mph with the cruise control on quite a lot! the worst was,well, dont want to talk about it but the MFD  showed an average speed of 80mph over 250 miles!!
I've found cruise has a slightly negative effect on economy, both cabled and dbw
Title: Re: fuel consumption
Post by: Neil_MV6 on 12 January 2008, 10:48:38
I started a new job in November which requires lots of Motorway miles.

My 2002 3.2 MV6 will do:

36-37mpg at 60mph
33-34mpg at 70mph
31-32mpg at 80mph

For the previous 2 years I worked from home and did loads of short journeys which knocked it down to 23mpg.

I'm very happy with the motorway consumption, I hought I was gonna have to chop it in for a diesel but then our compny introduced a new mileage allowance that recognises bigger engined cars.  

I calculated I need to do 26mpg to break even so I'm easily doing that.

 ;)
Title: Re: fuel consumption
Post by: Kevin Wood on 12 January 2008, 11:10:20
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I started a new job in November which requires lots of Motorway miles.

My 2002 3.2 MV6 will do:

36-37mpg at 60mph
33-34mpg at 70mph
31-32mpg at 80mph

For the previous 2 years I worked from home and did loads of short journeys which knocked it down to 23mpg.

I'm very happy with the motorway consumption, I hought I was gonna have to chop it in for a diesel but then our compny introduced a new mileage allowance that recognises bigger engined cars.  

I calculated I need to do 26mpg to break even so I'm easily doing that.

 ;)


That's about what mine will do. If you can keep the speed down it is pretty good. Seems a bit of a waste though [smiley=evil.gif]

Kevin
Title: Re: fuel consumption
Post by: Andy B on 12 January 2008, 11:33:45
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...... If you can keep the speed down .....

Which is why I tend to use cruise where & when I can. It helps to preserve my licience, as my speed would tend to creep up to near 3 figures without it.  :-?  ;)
Title: Re: fuel consumption
Post by: Golfbuddy on 12 January 2008, 14:18:16
Have a look at this spread sheet. It's data comes from OOF members who have contributed.

http://spreadsheets.google.com/ccc?key=phH9jJ7FuSBeEt5Enh48DSg&hl=en_GB#

 :y
Title: Re: fuel consumption
Post by: Taxi_Driver on 12 January 2008, 14:49:10
Quote
Quote
Quote
.......
Just don't look at instant consumption when you kick it down up a hill......

 ;DIt'll only get down to around 7mpg! ;D
7.1mpg appears to be hard coded limit on both MID types I've 'really tested' on...

Ive wondered why i couldnt get my 2.2 to show less than 7.1mpg  ;D :y
Title: Re: fuel consumption
Post by: Pitchfork on 12 January 2008, 15:47:39
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Quote
best i have seen on the MFD was 29 on a run back from cornwall in september more or less a constant 70mph with the cruise control on quite a lot! the worst was,well, dont want to talk about it but the MFD  showed an average speed of 80mph over 250 miles!!
I've found cruise has a slightly negative effect on economy, both cabled and dbw
Me too, Cruise has the habit of dropping down a gear & accelerating rapidly to restore the speed whereas a human would gently squeeze the throttle & resume speed gently thereby economising on fuel
IW
Title: Re: fuel consumption
Post by: Andy B on 12 January 2008, 16:36:03
Quote
......
Me too, Cruise has the habit of dropping down a gear & accelerating rapidly to restore the speed .....

An Omega's cruise is very gentle compared to a Senator, they really did want to restore your previous speed ASAP!  ;)
Title: Re: fuel consumption
Post by: spaceraceuk on 12 January 2008, 16:44:00
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Quote
......
Me too, Cruise has the habit of dropping down a gear & accelerating rapidly to restore the speed .....

An Omega's cruise is very gentle compared to a Senator, they really did want to restore your previous speed ASAP!  ;)

god yes I used to love resuming with greater than a 10mph increase to achieve. my 3.0i senator would absolutely lift off in a way I could never bring myself to do with the accelerator!
Title: Re: fuel consumption
Post by: Bourne on 12 January 2008, 16:44:01
I've got a 3.0 mv6 auto. Does about 21/22 going to work in urban trafic. On the mtorway , if I set the cruise at 74mph I can get 34 mpg on a run.Not that I would ever drive over the speed limit of course. ;)
Title: Re: fuel consumption
Post by: pfj101 on 13 January 2008, 17:51:08
My current average is 22 mpg with a mix of motorway & urban. Urban driving usually gives mw between 16 - 18 MPG with 30 + available on motorway journeys.

Optimum cruise is usually between 56 60mph for pretty much any vehicle. I do some test driving for various companies and that is generally considered to be the case.

You are right about never being out of the garage, putting a tenner in is a complete waste of time and energy as you will be back there about 15 minutes later, worth for the V6 rumble though!