Its not that hard to get a stupid reading. The average MPG needs 1/2 mile to calculate, just get the old girl upto speed - 70 or so, reset trip 2 and then put it in neutral and coast...... Best I ever got was 98mpg
 
Don't trust computer gimicks (not that I've ever had a RR young enough to have one fitted!) Brim to brim, preferably from the same pump if you don't need to top up en-route, is the best way to go. Suprising how many drivers, of all types of vehicle, cannot tell you their mpg, even on motors that they have owned for years. Most say something like ''I put £20 (or whatever) in & it lasts me a week''. Personally I don't care, if I can't afford to run it I'll change to a euro-box. Perhaps ignorance is bliss!
 
norseman said:
Don't trust computer gimicks (not that I've ever had a RR young enough to have one fitted!) Brim to brim, preferably from the same pump if you don't need to top up en-route, is the best way to go. Suprising how many drivers, of all types of vehicle, cannot tell you their mpg, even on motors that they have owned for years. Most say something like ''I put £20 (or whatever) in & it lasts me a week''. Personally I don't care, if I can't afford to run it I'll change to a euro-box. Perhaps ignorance is bliss!
Click to expand...

i'm not bothered about mpg, i just like fcuking around and a rangey that can get anywhere near 50mpg on petrol is something to behold, if i can get it to say 98mpg it'll sell on ebay for a considerable sum of money!!!!

i'm gonna go out and try to beat my record!!!
 
mine (4.6) reads around 17/18mpg on the clock however working it out brim to brim as I have to for work...it is only aound 12/14 (on lpg). This is probably more to do with the way I drive it though :)....

Can't wait for the snow.....
 
lets see if you lot can top 69mph, i only got pics at 65, i was trying to get camera sorted so i'll consider myself beaten if anyone can beat what i have evidence of!!!

these are when i had pulled up!!! the mpg drops fast!! not as fast as the fuel guage tho!!!

29122009109.jpg


29122009112.jpg
 
woods767 said:
My 4.6 P38 got just over 20mpg average to the alps and back with a fair bit of messing about in the mountains whilst there. Much better than i expected.

And who buys a diesel P38 anyway? :p
Click to expand...

i have,and very happy with it as well.:D:D:D
 
rewmer said:
Its not that hard to get a stupid reading. The average MPG needs 1/2 mile to calculate, just get the old girl upto speed - 70 or so, reset trip 2 and then put it in neutral and coast...... Best I ever got was 98mpg
Click to expand...

in one of my euroboxes i managed 147 mpg.that was in overrun though.:eek::D:D
 
when it worked my 2.5 dt did average of 27 yet on the motorway could get nearly 30 better than my 2.8 td izusu classic i must add lol
 
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