Join Date: Oct 2014
Location: Nashville, Tennessee
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I agree with PJ,.....I donít use an overflow tank. But some guys do, on these cars it is like chicken soup when you are sick, wonít hurt....
But may not do much either. Newer cars run different systems, they have the overflow tank operating under pressure, you fill thru that pressure cap. On our cars the pressure cap is the radiator cap, it has a spring and a certain pressure like 16 PSI.
When the pressure releases, if the coolant is too much it flows into the whiskey bottle that you see on rat rods at the car show. The whisky bottle is not under pressure, it is just a bottle for overflow,.....