R risuperglide Active Member May 10, 2011 #11 I have never heard of using ATF in a Primary! That is news to me! Running corrrect viscosity in very important in reference to where it is going! That is what the owners's manual is for! Follow it!
I have never heard of using ATF in a Primary! That is news to me! Running corrrect viscosity in very important in reference to where it is going! That is what the owners's manual is for! Follow it!