A 1988 Chevy pickup truck likely requires
Dex-Cool coolant, or an equivalent
50/50 mix of ethylene glycol antifreeze and distilled water. However,
it's crucial to check your owner's manual. The specific coolant recommendation will be detailed there.
Using the wrong coolant can damage your engine. If you can't find your owner's manual, consult a local auto parts store. They can look up the correct coolant based on your truck's engine size and other details.
