Fuel economy

[StreetDragster]

Hey everyone,

Bit of an interesting data point for everyone, I certainly found it interesting.

Two runs to Silverstone and back yesterday @85mph, pulled 27.7mpg which I thought was very reasonable

Thanks
Matt

Edited by StreetDragster on Monday 9th September 11:16

[Jarcy]

I don't think I'm getting anywhere near that, and I'm not sure why.
However I haven't bothered to measure for sure yet, as I haven't drained a tank without a little hooning to mess up the average.
My gripe is that I'm getting less than 200 miles out of a full tank down to 1/4 full, which is crap range.
A weekend jaunt over to France with my wife ended with an unnecessary hunt for an open fuel station on a sleepy Sunday evening.

[Hollowpockets]

On track of course but i get 5mpg when used as road car it was about 25mpg.

[dave sutton]

Mine's a 2.5 and for motorway cruising, if I stay below 80, I can get 30, on track it's about 11.

[AMG Merc]

OP you misread your speedo - you meant 70 mph, right?!

[StreetDragster]

Errrr, yep, officer

Matt

[andygtt]

used to get 30mpg average when the car was stock, thats all driving including motorway, backroads etc... its doing 20mpg with same driving now... still better than my M5 gets so cant grumble lol

[AMG Merc]

It's generally been the accepted rule to allow for approx. 200 miles per tank (which allows for a little in reserve) and not to allow it to empty.

Mpg (generally an irrelevant measurement metric for such "toys") is between 15-30mpg - as we all drive differently

[dave sutton]

AMG Merc said:

OP you misread your speedo - you meant 70 mph, right?!

yes, sorry, hit wrong key

[Adrian W]

Since when did anyone give a st what their Noble does to the gallon (endurance racing accepted)

[AMG Merc]

Adrian W said:

Since when did anyone give a st what their Noble does to the gallon (endurance racing accepted)

as said Adrian - an irrelevance!

[TuxMan]

I try very hard not to actually know , I find I sleep better

[JayHeal]

Who cares about MPG
It's all about SPM - Smiles Per Mile
Works out much better

[AMG Merc]

JayHeal said:

Who cares about MPG
It's all about SPM - Smiles Per Mile
Works out much better

According to the Ancient Order of Leancis Nobilus (original buried somewhere under a car-park in Leicester) it was know as "Grinnage".

[dave sutton]

In my case, it's a hangover from the days when cars had old-fashioned distributors and carburettors and no electronic diagnostics readouts. Monitoring fuel consumption could give an early indication of something going outside tolerance. Maybe an old habit but it served me well when I fitted new pylons and found my fuel consumption jumped 20%, I judged it to indicate I could take some angle off the wing.