I have been tracking MPG in…
I have been tracking MPG in my cars for the past 16 years.
My 2005 Buick Rainier V8 was nearly spot on, I indicated an average of 17.98 mpg, and got 17.87 mpg in real life, this is recorded data at 100,878.3 miles.
My 2007 Chevy Tahoe is about 3% off over 209,000 miles indicated average 16.3, in reality 15.89
I briefly owned a 2020 Explorer ST indicated an average of 22.61, but in reality I got 21.65 mpg, which is over 4% off over 16,000 miles.