Just now, AMD87 said:

 that was after a 4 hour trackday. 

Then I would say thats a very respectable MPG!! Smiles per miles 

Well the key ring does say smiles per gallon 

I too have found the recorded mpg is often significantly less than that actually achieved calculated from the mileage covered and fuel added.

 

For a while in the summer the readings were more accurate.

Edited 22 December, 20178 yr by delta925

On 12/22/2017 at 23:03, delta925 said:

I too have found the recorded mpg is often significantly less than that actually achieved calculated from the mileage covered and fuel added.

 

For a while in the summer the readings were more accurate.

 

i turn my display to Range or Audio. Bloody German lairs