anyone running amsoil in either? if so how does it seem? i'm lokking to do the crank case, and diffs right away and hopefully the trans by late fall, any input would be awesome

 

if you want spend the money its more expensive but worth it! All their products can out beat and last any competitor

 

i think i will go for, my boss is a rep so i can get it for a good price

 

Any quality synthetic will do. Mobil 1, Red Line, Lucas Oil, & Royal Purple also make great fluids. I have Lucas Oil in my Explorer & Royal Purple in my F-150. Do all the fluids. Front Differential, Rear Differential, Transfer Case, Transmission, and Engine.