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Ok 1987 32 ft class a, 454, it ran 1/4 temp gauge at about 50 degrees before i changed the thermostat and anti freeze,
now it runs temp gauge half maybe a little more,i used the original equipment new thermostat and a cheaper radiator fluid that i have used before with no problems, but i noticed it wasnt as thick loking as the one that i drained out,why would it run hotter???also what about these radiotor addittives that claim to keep your engine 20% cooler, do they work???