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Omega General Help / [m by=hotel21 destboard=GenChat dest=1214817449]: 46.3mpg from a 2.5 v6
« on: 30 June 2008, 12:48:19 »
[moved] [link=http://www.omegaowners.com/forum/YaBB.pl?num=1214817449/0]General Chat[/link] [move by] hotel21.
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Newbie Welcome Area / Re: 2.5 v6 economy
« on: 30 June 2008, 15:14:38 »
Cheers everyone 
Its nice to find a lively forum for Omegas, these may be my first posts but I have been reading for a while and everything I've needed to know so far has been on here already.
Its nice to find a lively forum for Omegas, these may be my first posts but I have been reading for a while and everything I've needed to know so far has been on here already.
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Newbie Welcome Area / Re: 2.5 v6 economy
« on: 30 June 2008, 10:15:06 »
cheers 
I'll start a thread in the general chat section then....
I'll start a thread in the general chat section then....
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Newbie Welcome Area / 2.5 v6 economy
« on: 30 June 2008, 10:07:30 »
I bought a '98 Omega 2.5 V6 manual estate a couple of months ago as a workhorse. Initially with normal mixed driving I was getting anywhere from 28-35mpg but I regularly drive from Chelmsford, Essex to Ipswich, Suffolk on the A12 in the early hours when I am in no hurry so I started experimenting with driving to save fuel for obvious reasons.
My results have been getting progressively better and last night I managed a new personal best of 46.3mpg which I am very pleased with, high 44s was the best I'd managed up til now.
Unfortunately the sort of driving required to achieve this level of economy is just not possible most of the time, it requires an empty road and a lot of concentration and patience. It goes to show whats possible though. Has anyone else managed economy like this from a 2.5 V6 Omega?
My results have been getting progressively better and last night I managed a new personal best of 46.3mpg which I am very pleased with, high 44s was the best I'd managed up til now.
Unfortunately the sort of driving required to achieve this level of economy is just not possible most of the time, it requires an empty road and a lot of concentration and patience. It goes to show whats possible though. Has anyone else managed economy like this from a 2.5 V6 Omega?
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General Discussion Area / Re: 46.3mpg from a 2.5 v6
« on: 02 July 2008, 02:56:30 »
I've just got back home after driving as frugally as I possibly could without being pulled over for going too slowly and erratically and I couldn't believe my eyes when I switched to the average mpg and it said 51.1!
Never again though, it was hard work, and I don't think there is anything more to find now...
Never again though, it was hard work, and I don't think there is anything more to find now...
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General Discussion Area / Re: 46.3mpg from a 2.5 v6
« on: 01 July 2008, 16:49:52 »Quote
interestingly i've found that there are apparently 2 "plateaux" for fuel economy on the v6 3.0, this applies equally to my sintra and miggy, one at around 65-70, and another at about 92
Yes I can definitely believe that, one of the biggest issues with economy with petrol engines is pumping losses due to a mainly closed throttle, this is one of the reasons diesels are good for economy. Pumping losses will peak during part throttle full load conditions so sometimes it is more economical to change down a gear and open the throttle almost totally, enough to reduce pumping losses but not enough to activate the ECUs full throttle enrichment (the equivalent to an old carbs accelerator pump) which after a bit of practice becomes second nature.
I suspect there is a further plateaux lower down though, 65-70 seems quite fast to me for economical driving
(I can't believe I just said that, my other car is a modified trackday 205 GTI that I never drive slowly or economically so this is all new to me!)Quote
meaning one gets better econmy with cruise at 92 , than at 85.
You can get MUCH better fuel economy without using cruise control, its better than normal driving if you aren't thinking of economy but its far from efficient. The main issue is it will accellerate up hills then back off on the way down which is the opposite of what I would do.
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General Discussion Area / Re: 46.3mpg from a 2.5 v6
« on: 30 June 2008, 11:03:06 »
cheers
Theres more to it than just a light foot though IMO and constant speed is worse than you would expect! If the road starts to climb I let it slow me down, and if I'm descending a hill I will let the car accelerate. Just to make it clear I don't drive like this if there is any other traffic near me
Theres more to it than just a light foot though IMO and constant speed is worse than you would expect! If the road starts to climb I let it slow me down, and if I'm descending a hill I will let the car accelerate. Just to make it clear I don't drive like this if there is any other traffic near me
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General Discussion Area / 46.3mpg from a 2.5 v6
« on: 30 June 2008, 10:17:29 »
I bought a '98 Omega 2.5 V6 manual estate a couple of months ago as a workhorse. Initially with normal mixed driving I was getting anywhere from 28-35mpg but I regularly drive from Chelmsford, Essex to Ipswich, Suffolk on the A12 in the early hours when I am in no hurry so I started experimenting with driving to save fuel for obvious reasons.
My results have been getting progressively better and last night I managed a new personal best of 46.3mpg which I am very pleased with, high 44s was the best I'd managed up til now.
Unfortunately the sort of driving required to achieve this level of economy is just not possible most of the time, it requires an empty road and a lot of concentration and patience. It goes to show whats possible though. Has anyone else managed economy like this from a 2.5 V6 Omega?
My results have been getting progressively better and last night I managed a new personal best of 46.3mpg which I am very pleased with, high 44s was the best I'd managed up til now.
Unfortunately the sort of driving required to achieve this level of economy is just not possible most of the time, it requires an empty road and a lot of concentration and patience. It goes to show whats possible though. Has anyone else managed economy like this from a 2.5 V6 Omega?
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