- Oct 1, 2000
My manual calls for 10-w30 in the tranny. Right now i have 10-w40 in it. Would it be ok to put 20-w50 in ? Would that result in different clutch behavior? I am only tempted to use it because there is a 5 quart container of Castrol GTX (no ec) sitting in my basement that my brother uses for his ninja which would be quite convenient for me.