Honda Insight Forum banner

FCD versus Self calculated?

1924 4
I just had my first fill up after 509 miles.

I put in 8.42 gallons and stopped on the first click of the pump.

509 miles driven/ 8.42 gallons = 60.45 MPG.

The FCD LMPG was 55.4.

Which MPG should I go by?
Top