Alternatives to Motorcraft Gear Oil
#17
Royal Purple
I saw a documentary on Royal Purple, and I would say it is a good as any of the other brands mentioned above. One thing I did note, was that you don't have to add any friction modifier. It is built in. Royal Purple can be a bit on the expensive side, as are the others, i guess, and It would come down to personal preference. I also know that Amsoil would probably be a good bet as well. Never heard anything but praise from people using that product.
Good Luck!
Good Luck!
#18
#19