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Choice of Oil for older 50's motors

Old March 16th, 2019, 07:09 PM
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Choice of Oil for older 50's motors

I have a 54 88 with the 324
Which oil is the best ?

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Old March 16th, 2019, 08:01 PM
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You'll likely get a lot of answers on this question. I have a '55 with essentially the same engine. It's hard to say which is best. Many have different opinions on just viscosity. If you like to read and have a bit of time available, you could read:

https://540ratblog.wordpress.com/201...-test-ranking/
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Old March 16th, 2019, 08:23 PM
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Many of us use Valvoline VR1 Racing Oil which is high in zinc content. You have to do that or add ZDDP to get the zinc. Without zinc you will wind up with a flat camshaft I think Shell Rotella works also but am not sure.
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Old March 17th, 2019, 03:55 AM
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Good looking car. I'll second the Valvoline VR1 oil.
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Old March 17th, 2019, 07:46 AM
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I use the Rotella 15/40 for the zddp and the high detergent, keeps my lifter free and quiet. But as mentioned by Glenn the options are endless as long as the oil has the correct zddp.

I had issues with full synthetic oils weeping/leaking through my cork gaskets so I'm using full dino products now. You may or may not have this issue especially if you have neoprene top and bottom on your engine..... Tedd
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Old March 17th, 2019, 04:40 PM
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I used to link to the 540rat blog. Now there is so much BS in it its hard to follow. I use VR1 10x30 in my car also.
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Old March 18th, 2019, 06:19 PM
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Any modern oil will be superior to anything available 20 years ago, and oil from 20 years ago would be better than what that car had originally. If itís a stock well worn engine, I donít think the zinc content would matter much. The spring pressure and well established wear pattern wouldnít require much zinc to keep things happy. Having said that, if the engine is fresh, or prefer to play it safe, Valvoline VR1 is hard to beat.
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Old March 18th, 2019, 06:41 PM
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Why would you even take a chance and not use oil with high zinc? Not worth the risk.
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