Quote:
Originally Posted by 68 Firebird
been enjoying my car on the rare day we don't have rain lately. And noticed that when
I come off a highway run and the water temps are 190, that she idles smoother and feels
more responsive. Car never gets to 190 unless temps are 80 or better.
Usually around town she hangs at 183-185, so no big temp difference.
But I started thinking, why not run a 195?
Gerry
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The whole purpose for running the lower (180°F) thermostat for most guys is that they are pushing the limits on static compression and can't run warmer temps. Then some guy reads that lower temps are better and the next thing you know the entire Pontiac Community thinks their car will self destruct at any temperature above 180°F..........Just like the self destruct feature at 5600rpm and 9.6:1 static compression ratio.
The '72 Pontiac Service Manual specifies a 195°F Thermostat.