What oil should I use in a 1987 Ford escort?
I was doing some research and found that engines with flat tappets need oil with zinc, and I can't tell if this engine needs that or not. It's a 1.9 4 cylinder with sohc. On Wikipedia it does say that it has problems with cam wear.
It has 143k miles, original engine. It does make some ugly top end noise for a second or two, on a cold start.
Owners manual says 5w30 or 10w30. I was just wondering if i should use oil with zinc, like valvoline vr1, or maybe some kind of additive. The previous owner used mobil super 10w30 with Lucas synthetic oil stabilizer.