Do our cars require a Zinc additive?

Post your E12 technical questions and comments here. Please, no off-topic posts.

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canada karl
Posts: 1065
Joined: Tue Jan 06, 2009 3:50 pm

Do our cars require a Zinc additive?

Post by canada karl »

Flat tappet engine?
1976 530i. BMW 59 Triumph TR3A(rolling resto). 67 Triumph TR4A(salvageable). 86 900S Winter car
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Mike W.
Posts: 2889
Joined: Wed Aug 30, 2006 12:12 am
Location: Sonoma County

Post by Mike W. »

No, I don't think so. My E28, which I sold 2 years ago with 330K on the clock, has a perfect looking cam the last valve adjustment I did which was not too long before I sold it. And that cam came out of an engine that was run out of oil and threw a rod at 175K. Nothing but good old dino Castrol 20-50 in the 11 years and 155K I put on it. There are those who differ and some endless oil threads on Mye28, but I say no.
Mike W.



02 525ita. Wife's, aka grocery getter
02 530i. New to the fleet, 3 pedals.
03 QX4, AKA the Datsun. Finally got the 4WD vacationmoble to stop smoking.
07 Xterra. Still on the DL, a purchase from hell.
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