I noticed no one is making recommendations for the transmission fluid or the differential. Anyone, anyone, Bueller?
I ran GM Synchromesh in the T56 we put in my fox body."For all TKX 5-speed models, TREMEC recommends TREMEC High Performance Manual Transmission Fluid (HP-MTF™), GM Synchromesh™ or Mobil 1 Synthetic ATF.Fluid capacity is 2.7 quart / 2.6 liter."
I would run the 15w50 as well, because I don't know how one would have this kind of car and not beat on it... Does not compute.If I was going to beat on it, one of the air cooled P car crowds favorites is M1 V-Twin, its a very stout oil so I would probably do that or M1 15/50.