Andrew Hebron wrote:

mikeyt wrote:

Ok, youre slowly wiping the smile off my face but it was good while it lasted, so the readout is telling porkies then

Not so fast chaps! Like me, Mikey is driving a manual, which LR reckons to be ~15% more fuel efficient than an auto.

My recent trip from London to Pickering averaged 33MPG including some crawling in tailbacks and quite a lot of not very efficient 85~90MPH cruising. Using the LR 15% rule, I guess the equivalent trip in an auto would be ~28MPG? Does that sound right, auto people?

Mikey - If you reset the computer while on the M-way and were cruising between 60-70 - i.e. only measuring in the most efficient band - then 41MPG is possible (albeit not sustainable over a decent sample). Around town 22-24MPG is consistent with what I see.

When I came back from Coventry in what turned about to be a stolen D3 I tried every concevable trick to get the maximum return in MPG.
I was driving back to Leeds on the M1 late at night, generally circa. 65mph and reset the computer many times and I got nowhere near 41mpg.
I seem to remember 35mpg at one point over a mile or two, mostly downhill, but generally just under 30mpg.
The one I was drving was a 2005 plate SE manual in silver with 51k on the closk so I just can't see circa. 40mpg as being realistic.

Quote:

so the readout is telling porkies then

If you manage to get 720 miles to a tank of dino juice, we'll all be very interested in your driving style. Long term average for manuals appears to be early 30s.

It's also worth noting that your FBH should be running continuously (consuming 150ml per hour on tick-over) and this doesn't show in your mpg readout. During the summer months, my readout is pretty accurate, but less so since the FBH started working. The tank contents gauge gives the game away

hensoni wrote:

If you manage to get 720 miles to a tank of dino juice, we'll all be very interested in your driving style.

hensoni wrote:

Long term average for manuals appears to be early 30s.

Will Hay wrote:

...I tried every concevable trick to get the maximum return in MPG...and I got nowhere near 41mpg.

bp wrote:

41mpg is v impressive I would have to push mine to get anywhere close to that

now THAT, I'd like to see...

Quote:

Not trying hard enough. If you really want to get a ridiculous number, reset at 60MPH in 6th (preferably downhill & with a tail wind)...you can get a truly meaningless 60+MPG (briefly) if you try hard enough.

My bad, I was trying hard for the maximum realistic figure.
I once had the readout give me 764mpg in the A6 but figured that was for the brief second I sucked in my gut and held my breath whilst simultaneously kicking my wife and children out of the vehicle at 56mph

Anyway, I only offered my personal experience as I thought the OP had suggested an average of 41mpg on a 115 mile trip on the M6/M42