Anti-freeze for the most part will turn acidic over time, if your using the green stuff, change it every year. As far as the
chrome pieces go, most makers sacrafic quality for the shiny
look...knowing it will fail...thermostat housings, chrome pulleys...
etc, all fall into this catagory. What ever you decide to use, try
to select a metal that is the same as the intake, ie, if you run
an aluminum intake, get an aluminum t-stat housing. If you
have a stock cast iron, go scoutin the junk yards for an iron
t-stat housing, (most of them if even remotely protected from the
weather will still be usable) Good LUck.
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