Reply to "Castrol Classic"

jffrMember

I have a Fontana block with a hydraulic roller camshaft. The engine builder told me to use high Zinc oil because of the load that is put on the distributor gear. I am also using a high pressure oil pump, which can increase the load on that gear. There are several different brands of oil that offer high Zinc content for older engines and they are not hard to find. In my opinion, it is better to stay safe and use the high Zinc oil rather than gain an advantage with higher temperature capability of a synthetic oil.

2/2/234:01 AM

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