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Author Topic: high mpg  (Read 4148 times)

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Chris_H

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Re: high mpg
« Reply #15 on: 05 April 2012, 14:46:22 »
If you haven't measured the MPG by filling with a known amount (like brimming twice and using the refill quantity) then dividing that into the miles travelled between top-ups, then have you checked that your trip computer is using UK gallons?  I think someone else on here had inadvertently switched to US IIRC. :o
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First Vauxhall - PABX Cresta; Previous, previous Vauxhall - 3.0 12v Senator CD; Previous Vauxhall Omega Elite 3.0V6 Saloon Auto

blackviper90210

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Re: high mpg
« Reply #16 on: 05 April 2012, 15:51:18 »
Quote from: martin42 on 03 April 2012, 19:47:40
fuel leak??
wheres the jerry cans lol  ;D

In the kitchen  ::)
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blackviper90210

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Re: high mpg
« Reply #17 on: 05 April 2012, 15:54:12 »
I average 22mpg round town and 26/27 on a run, but I'm not light on the right foot  ;D ;D ;D ;D ;D
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tunnie

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Re: high mpg
« Reply #18 on: 05 April 2012, 16:06:12 »
Quote from: Chris_H on 05 April 2012, 14:46:22
If you haven't measured the MPG by filling with a known amount (like brimming twice and using the refill quantity) then dividing that into the miles travelled between top-ups, then have you checked that your trip computer is using UK gallons?  I think someone else on here had inadvertently switched to US IIRC. :o

Its about right, zero'd trip at tanking up. Reading 326 miles :)
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TheBoy

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Re: high mpg
« Reply #19 on: 05 April 2012, 16:14:56 »
I having been getting around 18mpg from my 3.2 on gas.  Factor in around 15% for fact its gas, around 21mpg on petrol as an estimate. Not driven like Miss Daisy Tunnicliffe, obviously...
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tunnie

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Re: high mpg
« Reply #20 on: 05 April 2012, 16:32:59 »
Quote from: TheBoy on 05 April 2012, 16:14:56
I having been getting around 18mpg from my 3.2 on gas.  Factor in around 15% for fact its gas, around 21mpg on petrol as an estimate. Not driven like Miss Daisy Tunnicliffe, obviously...

Yeah, but my throttle has more than two settings  ;D

Fact your pads last 5k kinda says a lot!  ::)  :D
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Bixy1

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Re: high mpg
« Reply #21 on: 05 April 2012, 21:12:11 »
Cheapo Elite, 2.5 auto. 17 around town driving carefully. Max 27 on a run i.e. Whitby.
Interestingly, I still got 27 when I drove normally. (Bit of welly!!)  What's that all about?  ???
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PLANETNZ

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Re: high mpg
« Reply #22 on: 05 April 2012, 23:17:39 »
"CLEANED" the Lambda(s)!?? Ah think that might be your problem....chuck a couple of new ones in.
 :y
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Grrrrrr

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Re: high mpg
« Reply #23 on: 06 April 2012, 11:47:36 »
The auto isn't as frugal as the manual. Have a look in the handbook and see what the figures are. Depends a lot on where and how you drive and how warm the engine is. If you're only driving 2 miles across town the engine won't get properly warm and you're start stopping so fuel economy will be atrocious. Think someone mentioned lambda sensors? Might be wrong but my understanding is that they only kick in once everything is up to temperature?

My 2.6 auto gets about 25mpg on a 100 mile run with a heavy foot. I have, by dint of not going over 60, managed to ease it over 30mpg on the same run but frakly the boredom was killing me. Around town, give the oil companies a single finger salute and stick to the push-bike!

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hawke113a

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Re: high mpg
« Reply #24 on: 06 April 2012, 17:24:40 »
just been to east coast and on the a64 (which is a nice quick road) i got upto 30mpg which aint bad.gonna change sensors next week and give car a good service(depending on mot outcome) then ill let you guys know if any better
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