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Old 08-23-2019, 08:13 AM   #6
JSeery
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Default Re: 40 engine temperature drop by 20 degrees

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Quote:
Originally Posted by L78CHEVELLE View Post
Paul, you got me on that one. Never heard of the "old penny trick".
That was THE thing to do in the 50s. Also, the penny used was your birth year! It was a 50s Hot Rod thing.
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