Re: Detergent vs. Non-Detergent Oil:Here we go again!

Posted by Bill U on Sep. 16, 1998 at 07:33:20

In Reply to: Detergent vs. Non-Detergent Oil:Here we go again!
posted by Gordon Biggar on Sep. 15, 1998 at 19:44:35

: This debate seems to crop up every six months -- like clockwork.The last reference that I see on the Board is dated August 12th, but it relates to STP being used with non-detergent oil.

: The reason that I raise the issue is that this afternoon I was chatting (by telephone) with John (son of Pete, the owner)of Pete's Auto Machine in Albuquerque.They recently babbitted my block, and they have done many insert bearing jobs for "A" enthusiasts throughout the country.John stated unequivocably that non-detergent oil should be used with babbitted engines.The reasoning, says he, is that the detergents in detergent oils create a chemical reaction with the babbitt, which situation is particularly harmful for those cars that are not driven frequently (e.g., that sit over the winter).

: Are there any (would-be) chemists out there who would like to comment on this subject?If I can round up enough diverse opinions, I will try to contact the technical folks at Shell Oil here in Houston for their thoughts.

: Thanks for any and all inputs.

: Regards,

: Gordon Biggar

Third player-what about synthetics?????????? I don't remember if they are available in anything but multi-grade. But where could they fit in the hobby??????????

I've always used 3oW non-det




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