Gen 3 Insight Forum banner
1 - 3 of 3 Posts

·
Registered
Joined
·
121 Posts
Here's a fairly easy way to verify your mpg for one fill up without having to calculate any difference caused by the tire diameter changing:

1. Fill your tank and make note of the mileage on the odometer (odo1).
2. Drive until you need to fill up again. This time, note the number of gallons (g) you add to fill your tank and the new odometer reading (odo2).
3. Your mpg for that tank will be (odo2 - odo1) / g

You can compare that with what the car tells you you're getting.
 

·
Registered
Joined
·
121 Posts
I think I figured out how the Insight calculates MPG. Most likely, it’s taking it from the fuel gauge and odometer, it’s assuming that the fuel gauge is accurate...
That seems logical. I recommend you try taking a photo of your odometer at your next two fill ups, and the gas pump's display at the second one. Then you can easily do the calculation. You can see if the car's mpg equals your actual mpg 😎 😎
 
1 - 3 of 3 Posts
Top