Quote:
Originally Posted by nhdoc
A car which runs at 90C+ is above its design temp. When new, these cars ran at just above 80C...95C means either the gauge is wrong or the engine is running a little hot. 80-85C is not cool...it's normal for these.
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Very true. I just often don't believe that the car is running at the temperature displayed on the gauge. My car is 25 years old and has a quarter of a million miles on it. There is a long list of things that are no longer within design specs. When mine says 90C, it might truly be running at 80, or 85, or 95. The only way to tell for sure is to use an infrared heat gun. I find that it's splitting hairs for me to worry about the gauge reading as long as it's relatively normal (i.e. not 60C and not 115C.)
As far as your wild fluctuations in temperature, agreed, that was most definitely not normal!