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Radiator coolant for 1990 corvette

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Old 03-27-2017, 06:02 PM
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Frank Diaz
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Default Radiator coolant for 1990 corvette

I flushed out my vette. I have now put 1 gallon and a half of Prestone. But it seems its already full. The car is on idle. I know its required for 3.65 gallons of Prestone. Any suggestions on what to do next?
Old 03-27-2017, 07:00 PM
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XLR8TIN
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Use the old school green ONLY
http://www.zr1specialist.com/HAT%20W...%20Coolant.pdf
Old 05-15-2017, 10:14 PM
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A Peter C4
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Did you pull out the knock sensors to drain the block? Remove one heater hose and blow out coolant by mouth or very low pressure?
Old 05-16-2017, 09:38 AM
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Goldcylon
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Originally Posted by XLR8TIN
What he said
Old 05-22-2017, 10:30 AM
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Paul Workman
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If nothing else, read the last sentence of Marc's article...

NO Dexcool, and no "universal" either - especially b/c the green silicate coolant is still available!!

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