What's the average of 5 MPG and 10 MPG?
The math isn't quite obvious to me, but if you go out camping and get 5 MPG on the way to the campground and turn around and get 10 MGP on the way back, your average MPG won't be 7.5 as you would expe...
Forum Discussion
wa8yxm wrote:
...I use a combination of two things. one is the dash display (instant MPG which is calculated by measuring distance with the speed sender and time and gallons with the fuel meter and doing simple division) and by the "Miles since last fillup"/Gallons to fill, method...
I can't quickly find web confirmation, but I suspect that this is done with the computer making the calculations for injector pulse width. With the computer also monitoring RPM and vehicle speed the instantaneous MPG can be calculated and displayed.
