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Castrol Forum

Professional automotive forum, sponsored and run by Castrol, for discussion of Castrol oil products. Messages may include, but are not limited to, passenger car motor oil, motorcycle oil, automatic transmission fluids, other fluids, motor oil types, product specifications, product applications, and other related topics. This forum is for experienced automotive repair professionals only, membership required.

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Recent Automotive Discussions in the Castrol Forum

11/16/2017 in the Castrol Forum
I recently performed a oil change on my 1969 Buick Riviera 7.0L. I was advised to installed zinc additive. Here is thread Engine had a rod knock when I snap throttle but old engine oil was saturated with fuel (I was able to set oil on fire). Decided to 10...
Oil with high zinc additives
10/24/2017 in the Castrol Forum
Looking for something with a high zinc content for smaller air cooled engines on equipment alot of them are splash lube so heavy oils are a no no they will break the dipper off of the rod.

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