MPG Calibration
 

Does anyone happen to know if the mpg information is calibrated in US gallons or UK gallons.

UK

Thanks. The reason I asked was because GM didn't recalibrate the Euro Corvettes.

I think you are way more knowledgeable than me on this topic, indeed on most topics related to this car, but if they didn't re-calibrate them then mine is doing about 40 miles to the gallon on a motorway run and I find that highly unlikely. Hence I think they must be reading UK gallons not US.

A fair assumption. I haven't been able to drive mine much but hope to do so soon, when I will do some calculations.

I managed to answer my own question by recording amount of fuel used between fill ups. 259 miles, 46.5 litres giving 25mpg for a UK gallon.

It was only after this, that I noticed a feature somewhere in the Settings Menu whereby you can switch between Imperial, US and Metric. :bonk:

Anyway, the Imperial setting agreed with the above mpg.