Is unleaded OK to use in a 1976 vette?

Asked by Feb 17, 2017 at 11:51 AM about the 1976 Chevrolet Corvette Coupe

Question type: Maintenance & Repair

What is the type and fuel rating for a 1976 Vette

3 Answers

74,485

Use a lead substitute which you can buy at your local car parts store. If your engine has been rebuilt for unleaded then you don't need that stuff. Also use ZDDP in the engine oil.

69,385

Absolutely, 1971 and newer GM vehicles are designed to run on unleaded gasoline. For a Corvette I'd recommend premium (92 octane or higher). HTH. -Jim

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15,095

Removing the lead in the gasoline was a disaster to older engines that needed the led for protection and coating the intake and exhaust valves. When the lead was no longer used, there valves would burn, creating issues with the engine performance and smooth running. Like Js8016 said above, it is not an issue from 1971 and above. In older vehicles, it requires a complete head job to put in parts that can function without the lead additive. Yes because of the higher compression, you need to use as high an octane as you can get at the pumps. A complete tune up, including timing is a necessary also.

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