anyone here had any experience with this oil? th guys at racing beat claim not to have any build-up and also to have a bit cooler running temp. i have been using castrol 20-50 and they said there is no need for 20w oil. any recomendations?
my ride 93 fd
thanxs

 

its the best synthetic i've come across... i use the premix as well, helps quite a bit w/ buildup i've found.

 

Ya I am going to use the 10w30 as soon as I find a dealer near me. I used to royal purple's site to find a place but the place was out of business. Right now I am using 10w30 Castrol GTX.

 

I use Castrol GTX 10w-40 but I've been looking at royal purple for my next oil change. Guess I'll have to check it out.

 

Good stuff, but not worth it if you ask me.
Especially for a Rotary

 

I use Royal Purple in my 3rd gen and won't use anything else now. Can I tell a difference, nope, it just gives me some peace of mind after talking to David Canitz (spelling might be wrong). It does seem to shift smoother with the royal purple fluid in the tranny.

Tim Benton

 

its good to know about the tranny fluid. I just got some from RB but havent put it in yet. also for the diff.

 

just changed my tranny +diff oil and i am sold! the tranny shifts much smother and the synchros seem to work better. i'll be ordering a case of the engine oil tommorow. thanxs for the replies guys.

 

Racing Beat sells it and they claim it is the first oil that they have tested that will actually increase HP.

Our local NAPA stores sell it here in Houston.

A few of us in the Houston RX-7 Club use it.