Late to this party....sorry:
My Plus 8 is the same as many, in hot weather mid to high 90s, in cold weather 104 to 106. All slightly unusual, but in almost 8 years it has been a constant, so I don't worry.
Slightly off topic, I discovered this summer that there is a fuel level warning light in the dial, it seems to come on with about 5L left in the tank. Given the accuracy (or otherwise) of the fuel gauge it offers a degree of confidence....or a false sense of security!
This reassures me, thank you
