i've read on the net that synthetic oil is not recomended for mazda's rotary engines. corksport carries an oil called rotary 1, but its like $100 for 4 quarts! so i was wondering what eveyone else is using that works good.
thanks

Frank

 

I use Castrol GTX 20W50 in mine, have been for several years.

 

Use search. This topic has been and will be debated forever. I'm Currently using Mobil 20w-50, but as soon as I get my car running I'm changing it with Mobil1 15w-50 full synthetic. I have 102kmi on the original engine.

-Jon

 

I use Royal Purple, recommended by Racing Beat.

 

I heard that Mobile1 just changed their formula so they are no longer a pure synthetic. Lots of people bitching about it. And to think I just changed to Synthetic a couple months ago. Oh well, probably already time to switch back to Castrol.

 

Castrol 20W-50 in my TII. But in my '87 N/A I used 10W-30.