Originally Posted by gwilliams6 (Post 3929342)

I have 38 yrs and over a million rotary miles under my belt, on the track and on the street. Hey guys and gals, everyone should know you don't use ANY synthetic oil in your Rotary engine, Synthetic oil will not mix with the gas inside your engine and combust . Good ole Dino oil injected to lube the seals will mix , and is combustible and will be burned and exit via your exhaust. If you use synthetic oil for long, get ready for an engine repair. Use the 5W-20 for most climates. You can use a 10W-20 for hotter climates or racing.

Back in the ole days we did use Amsoil synthetic oil for our Race RX7s, but we rebuilt the engines at the end of the race season anyway. Now you have good premix from people like Pettit racing, to help the engines stay lubed and last. And the premix will combine with your gas and properly combust.

Originally Posted by TOFUDRIFTER (Post 3928980)

I couldnt find any threads relating to this topic, but if there is an existing one i apologize.

Anywho, my question regards the proper oil to use with a rotary engine, i know synthetic is a very thin oil and can cause older engines to leak like crazy.
So im curious if this would cause a problem with the rotary, apex seal leaks, or general leaks.

Any imput, experience, or street smarts would be much appreciated.

-TOFUDRIFTER