You should not use this oil. It is Automotive oil, not Off-Road vehicle oil. The main difference that makes automotive oil not good to use is that automotive oil is not made to work with wet clutches. You have to remember when an oil is designed for cars, the oil is only lubricating the engine, but when oils are designed for offroad vehicles they are lubricating the engine, transmission, and a wet clutch. These oils have other additives that automotive oils don't have. You will end up having problems with your wet clutch. So again don't use this oil or any other automotive oil.Ive been doing a little research on this oil and discovered the "cat with the hat" makes
and excellant oil that deffently states that it has zink:
5W-50 FULL SYNTHETIC (API � SM) For Newer High Performance Cars and Trucks This full synthetic oil was engineered for extreme protection and superior performance. It contains an advanced additive package for maximized horsepower, heat protection, and longer-lasting zinc/phosphorus anti-wear.
This is the recommended oil for the ROUSH� P-51a� Mustang, and meets Ford WSS-M2C931-B.
They are selling it for $7.99 in the 5/50 wt. on line.
I hope this helps anyone.