Replacing Radiator Coolant

courtesy of Bob, The Auto Answer Man

Hi Bob,
How often, I am assuming in miles, should one change the radiator coolant? I have an '87 Chevy Nova that has been very reliable. I did however have an overheat problem several years ago that caused the engine head to crack and me to fork over serious bucks to fix it. The repair person said I should have flushed the coolant as part of regular maintenance to prevent such problems. Your feedback would be appreciated! Thanks much.

Well, your technician was exactly correct! You should refer to the original owner's manual for your vehicle. In there, you will find a section on scheduled maintenance. Radiator and coolant flushes should be at least every 24,000 miles or two years to a max of 48,000 miles and 4 years. Now, there are some newer cars that came with long-life coolant. They are recommended to be changed at 5/50,000.
Good Luck!
Drive Safely!
Bob, The Auto Answer Man

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