Too old for sythentecic oil?

[Mertz]

I have been running Quacker State synthetic in my 72 for years and have had no problems. There are no additional leaks and the engine runs fine.

[OhOneWS6]

Originally Posted by Longhorn Man

when I said over the counter oil, I am talking about any oil you can find at wall mart and auto zone, and places like that. Yes, you can go to NAPA and order red line synthetic or any other oil known to man kind.
I shoulda worded that properly I guess.

I buy VR-1 at AutoZone.

[OhOneWS6]

Originally Posted by Shane

the absence of ZDDP (zinc) in motor oils is irrelevant to the performance rating of an engine.

It is completely relevant. A performance flat tappet motor with higher than stock spring rates can very well require a higher PPM of zinc to prevent cam wear. The cam in a motor with stock or slightly higher spring rates can survive with a lower PPM on zinc.

I'm not going to get in a pissing match about it. It's been hashed out 1000 times over. To the OP. Do the research yourself and make your own decision.

[Beelzeburb]

Guess my research correlates with the conclusions of others here too. I run VR-1 conventional and a NAPA Gold filter on my older high lift flat tappet engine.

[AusTx68]

Originally Posted by OhOneWS6

I buy VR-1 at AutoZone.

I think I found my new motor oil

[Shane]

Originally Posted by OhOneWS6

It is completely relevant. A performance flat tappet motor with higher than stock spring rates can very well require a higher PPM of zinc to prevent cam wear. The cam in a motor with stock or slightly higher spring rates can survive with a lower PPM on zinc.

I'm not going to get in a pissing match about it. It's been hashed out 1000 times over. To the OP. Do the research yourself and make your own decision.

lol ...

[piecesparts]

Check out Synergyn oils at the website below. They have created an oil that has the things that the older engines need. They make a whole line of products.

www.synergynracing.com

[OhOneWS6]

Originally Posted by Shane

lol ...

You are certainly entitled to you opinion as am I. Good luck selling yours to all the people racing at IHBA, IHRA, or NHRA events. I will say it again. The amount of ZDDP needed is relevant to the performance level of the engine it is going to be used in.