Lead Additive in my Classic Car?

I own a l949 plymouth coupe original 218 6 cylinder still in vehicle. I was told the other day that I should be adding lead to my auto gas. Supposedly the engine as it begins to wear out starts to pit the pistons thus adding lead to my gas would prevent engine wear.

I’ve had the car since l973 never had any engin trouble -not even on long hot weather 500 mile one way trips. So is it a good idea to add lead to my gas?

Hi there

Yes, you should be using a lead additive with each tank of gasoline. The lead acts as a lubricant for the top end of the engine. You can buy lead additives at your local auto parts store.


Austin Davis

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Austin Davis, consumer car repair advocate. "Hi there! I love to help people solve their car repair problems and I hope my site was helpful to you today. Thank you for stopping by."