kent2174

So I like to top off the tank with 2-4 gallons on occasions, i.e. driving from LA to Vegas.
Has anyone noticed mpg and range do not change with just a few gallons?
So I made adjustment to driver display mpg to change upon reset.
Mpg changed to current driving habits, but range does not update.
Any way to update range to match current mpg?

LNXT200

I usually don't fuel up before it is down to 1/2-1/4, and the range resets right away

lesz

When the sensors in the fuel tank read how much fuel is left in the tank, that reading can temporarily vary and be inaccurate when the height of the fuel in the tank near the sensor changes as fuel is sloshing around when the car moves or changes speeds or when the car is going up or down a steep hill.

Under such circumstances, in order to prevent the sensors from mistakenly thinking that fuel has been added to the tank when no fuel actually has been added and, then, resetting the "mpg after refueling" and "range" readings when it shouldn't be doing so, those readings don't reset unless the sensors think that at least about 3 or 4 gallons of fuel has been added to the tank.