15/40 rotella has more zinc in it than automotive oil. Easy to find and cheap (ish). I wouldn't run it in the winter though.
They make a 10w30 Rotella too. That is what goes in my older stuff.15/40 rotella has more zinc in it than automotive oil. Easy to find and cheap (ish). I wouldn't run it in the winter though.
That's what I thought but actually most cam manufacturers will request oil with ZDDP additive anyway. I have a Howards hydraulic roller, Howards wants ZDDP in it and my local shop recommended me Maxima Racing oil which has 2x the ZDDP than most oils that advertise having it. The dirt burner guys also use the additive in their roller engines.Thankfully, I'm all roller cams now, so the ZDDP doesn't matter. I run Carquest synthetic in the truck and the Pig; I believe it's made by Valvoline. Hadn't heard about the Brad Penn change; I guess I'll just switch the 67 to Carquest as well.
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