I was quite surprised to see a difference between both when I filled up the tank. According to the km (left) the car drove 554 km, according to the trip meter on the right it was 520 km. ??? I didn't write down my fuel consumption before so they could be off for some time.

For Prime I know the trip meter is prone to die. I don't feel like spending $500+ for a new one or $50 for a used one which fails again.

So what to do? Take it out? Cover it? Neglect it? A luxury problem I know...