APEX 06
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Guys I was going to replace my Coolent (100%) to (50/50). I pulled the cap off the radiator and there was oil looking spots. Sled runs fine, oil looks fine-no milkly color. Thinking if its oil can I replace the head gasket with the motor in the sled.
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Help

Do a pressure test it may be nothing more than someone added coolant with a oily funnel.
APEX 06
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same pressure test as a car right
09nytro
TY 4 Stroke God
Yes
APEX 06
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what pressure should the nytro be tested at.
Mills
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it doesn't take much pressure to find a leak so if you keep it 10 psi or under you should be fine. Most coolant system caps "pop-off" at around 16-17 psi.