[jkv45]

Originally Posted by flitecontrol

Here's a link to a test of motorcycle specific versus automotive oil in motorcycles: http://www.motorcyclenews.com/mcn/ne...e-oil-rip-off/

I use automotive oil in mine.

I've seen that - it was written in 1994! Direct link - http://www.nightrider.com/biketech/oiltest1.htm - first sentence.

Oils have changed. Auto oils are no longer safe to use.

They were comparing old auto oil (with adequate levels of ZDDP) to cycle-specific oils with even higher levels of ZDDP. Now the levels of ZDDP in auto oil are about 30% less than they were at that time.

Also, in high performance/high RPM applications, where valve spring pressures are greater, ZDDP is more important than in normal/lower RPM applications.