Thought I'd share this data.

Actual MPG calculated by filling back to brim.

Hope it's useful...

Date Computer MPG Actual MPG

13/11/2007 44.2 45.2

22/11/2007 42.9 41.4

03/12/2007 47.2 46.0

15/12/2007 45.8 45.3

26/12/2007 43.4 42.4

28/12/2007 46.8 45.4

05/01/2008 44.8 43.6

22/01/2008 42.8 42.0

10/02/2008 43.5 42.9

25/02/2008 42.4 42.2

17/03/2008 42.8 42.5



Sorry can't get the info in a table....

Hi

Thank you for the numbers, never had ours empty to try it. On rough calculation only our fuel stayed at average of 5,90 lts diesel -100km that's 45.73 miles per gal I think, 80% motorway driving, some secondary potholed country and city roads, that seems about correct with your numbers would you say .

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Octy 2, 1.9 TDI PD Ambiente 4x4 Combi and Nissan Sunny 2.0 DLX, Company Octy 1.9 TDI Tor Combi.

Hi again 1 question is yours a PD, not that I am aware of any difference in fuel saving ?

Assuming that your measured figures are 100% accurate, the computer figure is actually quite accurate then. I did a quick bit of maths, the average error between "real" and computer MPG is 0.88!

R.

Yes, the computer seems to be reasonably accurate.

The 2 actual figures >45MPG were from big motorway journeys, whereas the rest are from a mix of twisty-hilly A-roads and motorways.

I am a bit disappointed in these. The car's done just over 11,000 miles now and I thought that I'd have seen a bit of an improvement to an average of 45-ish MPG.

Hopefully when (if!) the weather gets a bit warmer, it might get a bit better.

I'll post the next set of figures at the end of July.

Yes, the computer seems to be reasonably accurate.

The 2 actual figures >45MPG were from big motorway journeys, whereas the rest are from a mix of twisty-hilly A-roads and motorways.

I am a bit disappointed in these. The car's done just over 11,000 miles now and I thought that I'd have seen a bit of an improvement to an average of 45-ish MPG.

Hopefully when (if!) the weather gets a bit warmer, it might get a bit better.

I'll post the next set of figures at the end of July.

I'd be happy with that considering the running gear you have, and the added weight.

Last week in SWMBOs PD - I know its not the 4x4 - we did this run. (may work ????) with me driving and we got what can only be described as a stunning 74.1 mpg average indicated by the computer.

Bit of Mway, bit of dual carrigeway, backlanes, the lot. ALL at or above the speed limit.

She does about 700 miles a week, and is getting an average 64 mpg (computer & measuring)

Not bad for a ton and a half of car, 30% MORE mpg than the planet saving Prius and more than making up for my vRS.

Save the polar bears, drive a PD !!!!!

Not bad for a ton and a half of car, 30% MORE mpg than the planet saving Prius and more than making up for my vRS.

!!!!!

I can't understand the Prius, really; what is the point of lugging 1/2 ton of batteries about, so that you can boast that on the odd occasion 'round town that you're using "battery power only".

The fact is that in the real world of driving the Prius struggles to make 50 mpg, and we all know that our 1.9 tdi's can manage over 60 mpg, regularly.

I can't understand the Prius, really; what is the point of lugging 1/2 ton of batteries about, so that you can boast that on the odd occasion 'round town that you're using "battery power only".

The fact is that in the real world of driving the Prius struggles to make 50 mpg, and we all know that our 1.9 tdi's can manage over 60 mpg, regularly.

The Prius does make sense for constant stop-start driving around town (and that's what some people do all the time) as it charges the battery up again as you slow down, but a decent diesel will get much better fuel economy when doing constant speed cruising on the highway. Horses for courses, really , so choose what suits your driving best.

The Prius is one of the greatest scams ever perpetrated on the buying public. Although superficially greener than standard petrol cars, its CO2 stats take no account of the extra energy taken to build the batteries and associated hybrid paraphrenalia, or the nasty environmental consequences of disposing of them. The Prius also costs over £20,000. It is also fact that most people who buy them seem to think that they can run around at up to 28mph (after which the engine cuts in) all day, which is not true. The batteries only have a very short range. Like I say, it all seem rather pointless, frankly.