So is the friction modifier needed for the Royal Purple? I changed my tranny oil our for it's 80k check up and of course it looked like motor oil but no big chunks of metal came plopping out or any small ones that I could see. I have to agree with Warmonger I like the Royal Purple and it hasn't been warm at all here I have not gone out to start the car and take it for a drive today but yesterday after I changed it I put about 50 miles on it and enjoyed the shifting even with the stock open tranny.
