Originally Posted by DrCharles
How about Mobil 1 15W-50? work It has 1200 ppm zinc, 1300 ppm phosphorus, and a 5-quart jug from Walmart is only $25.47.
The Mobil website says it's for racing and flat tappet applications...


Bingo!!! Viscosity is a little heavy tho unless you are running loose clearances.

Check out Mobil1 Delvac or Rotella T6 synthetic diesel oil. I'm pretty sure it's available in 10w30 but the normal one is 5w40. Last I checked I think the phos and zinc was around the 1000 ppm mark, one a little over and the other a little under, zinc vs phos.

Kevin