Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks



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Backyard Mechanic
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Backyard Mechanic
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41 Master Deluxe, 216. I have never done anything to the internals of the motor and do not know its history. I have heard that I should be running lead substitute, I have heard to run it once in a while and I have been told it is a waste on money. What is the truth and what should I do? I have been running it when I have it with me when I fill up, so every so often. Am I wasting the $10 a bottle? It is also getting harder to find on the shelves.


I have found that having an old car is a constant project that is never done. I think that is a good thing. Keeps me learning new things. Having two from different eras is just a form of higher education.
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I have never used it in any of my old cars. If a $10.00 bottle only treats one tank of gas, it would also have to fix me breakfast before I would consider using it.

Mike


ml.russell1936@gmail.com

Many miles of happy motoring
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The compression in pre-WWII engines and many post WWII as well is below the requirement to prevent spark knock when using currently available 85-87 octane rating gasoline. In fact it is often necessary to increase the timing to receive the full horsepower in the engines designed to use ~ 60 octane fuel available when they were new.


How Sweet the roar of a Chevy four!
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There was no lead in regular grade in 1941.......lead was added to gas to make it burn slower in high compression engines to prevent pre ignition .


Gene Schneider
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Hall Monitor
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Originally Posted by Mr87Monty
Am I wasting the $10 a bottle?
Yes.


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1938 HB Business Coupe
1953 210 Sedan
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Backyard Mechanic
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Backyard Mechanic
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Thanks for the information. I have been using the 90 non-ethanol gas and occasionally adding this for awhile. Going forward I will just use the non-ethanol gas and Stabil (anything I do not use weekly gets this in it). Wish they had the non-ethanol in 87 then I could save allot of money.


I have found that having an old car is a constant project that is never done. I think that is a good thing. Keeps me learning new things. Having two from different eras is just a form of higher education.

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