I have just purchased a new Leisure Travel van in Canada that is on 2008 Chev Express van made in the US (as per sticker on the door). It has a 6 litre Vortec V8 engine on 1 ton frame (I think?). While traveling from Canada to the US on my first trip I was trying to figure out the mpg. It's suppose to give me 15 to 18 mpg, but it may not during the break-in period. During the trip I was able to change the Trip/Fuel menu on the instrument panel from Kilometers to Miles.
My question is. How is the calculation made on the Trip/Fuel menu for a Canadaian made vehicle manufactured in the USA for mpg? After the break-in period it was showing 15.5 mpg. Now is that based on US or Imperial Gallons? If it is a US gal then I would be getting 18 Imperial mpg. Does anyone know how that works?
Yikes. I'd check the manual and see what it says, but no matter what I'd do the calculation manually. It's very easy; reset your trip odometer every time you fill and divide miles driven on the past tank by gallons put in. Then you'll know exactly what units you used and can compare to the automated display.
You can also enter the info in a gaslog here on this website.