Quote:
Originally Posted by b-man
It really only cools the engine some when you’re forcing air through it with the heater blower fan on. Just as much as you’d expect a tiny radiator to cool a large passenger car engine, not much.
Otherwise no.
Bypassing it is fine. Think about how the factory built some cars with heater delete, bypassed completely because they had no heater core.
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This^^. The heater core DOES add coolant capacity, which can help a small amount. But cars with no heater seem to run at the same temps, so.....