Diff oil for ST-r
 

7-20-5 is this set up ok @ revrace?

any suggestions???? Please

I don't know about the ST-R, but I have always ran 10/12/2 in my ST-RR on all tracks. It really depends on what your track is like. Others have ran 7/20/2 , 20/7/2 , and 15/20/2 with good results.

Hope this helps