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Corvette C1 & Corvette C2 1953 through 1967

Synthetic oils

   
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Old 03-28-2017, 07:28 AM
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Default Synthetic oils
I am a believer in synthetic oils, but not sure if they are safe for older engines. Would it be safe to put synthetic oil into a 65 vette 327 engine? Thanks!
 
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Old 03-29-2017, 07:22 AM
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The only problem I would foresee would be possibly leaking through the old seals and gaskets.
 
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Old 06-19-2017, 12:28 PM
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I have had the same question?

1963 340hp survivor car with 22,000miles

Motor never has been opened up or removed and it is due for an oil change after 100 miles and 4 years..lol
 
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Old 06-20-2017, 10:12 PM
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Welcome to the forum.

Personally I'd stick w/ conventional oil.
 
Last edited by 73shark; 06-20-2017 at 10:16 PM.
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Old 01-24-2018, 08:18 PM
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The older engines need the zinc additive - which you can add or find in various racing oils.
 
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Old 01-24-2018, 08:50 PM
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You can also get zinc additives such as GM's EOS. I believe diesel oil might still have higher zinc in it.
 
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  #7  
Old 03-22-2018, 09:35 AM
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I use VALVOLINE Racing Oil 10W 30 - it includes HIGH ZINC - I think it's better than mixing in the additive - its engineered to be correct.
 
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  #8  
Old 03-22-2018, 09:36 AM
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Relative to the Vavoline oil - its VR1
 
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