do the engine gauges still work properly?

[xnomad]

Originally Posted by kilosierra

The first time might be right, but isn`t the coolant system pressurized and that because the boiling point independent from the altitude?

No expert here, just guessing.

Oops I didn't mean to come across as an expert either I'm just going by the Messerschmitt chart that shows that the temperature limits are lower the higher you get. Going by that I figured it must be because the boiling point changes with altitude.

However you are right the system would be pressurized so I'm not sure why the limits are lower.