Hi "Blurp",
You're lucky! My coolant tester has only a freezing point
scale.....but,seriously, that's all I want to know. That and the weather
forecast for overnight temperatures........... Apart from freezing
protection, anti-freeze has a limited life because of deterioration of
anti-corrosion properties of the additives. Some say two years.
As for your coolant level, I don't know the model year of your 240, but my
'93 coolant tank max. line is very close to the top. I wouldn't want the
coolant half an inch above that, especially when cold. I would suggest that
you simply remove enough to lower the level.
Good Luck.
Andy I.
