What is the maximum calculated mpg the display will show

Question

2015 Forester, manual transmission.

I drive to maximize fuel economy, and have reached 31.5 mpg. And there it stays, for a LONG time, even though by the usual progression it should have incremented at least a couple/three times now.

So - is 31.5 the maximum the computer will show?

Solar Mike · Answer

Those displays are notoriously inaccurate, some can show 999mpg under some conditions.

Best method to confirm fuel consumption is to “brim” the tank and use that fuel to compare the distance when you refill the tank to the brim again for the exact amount used.

A friend checks the display against actual brim to brim values to find a regular 5mpg error but you might find different.

What is the maximum calculated mpg the display will show

One Answer

Add your own answers!

Ask a Question