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Re: engine break-in oil
Posted to Educators Forum on 8/31/2023 1 Reply

I learned long ago of the BS with regard to the use of non-zinc lube oils and "flat tappet" failures.

The additive probably helped in some small way with some of the issues but had a lot of down side.

Why is it that so many "techs" fail to understand the f... Login to read more.

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