“You want the best quality you have to pay for it.
Amsoil is rated up there with the best, its V-Twin Fully Synthetic Engine Oil is number one.
Not seen ratings for their transmission oil but it does what it claims or maybe my harley gearbox is just breaking in. Gearbox oil is much of a same, usually a mineral based EP90 same as used in differentials.
Amsoil Transmission Fluid is Synthetic, I trust one product for my engine so transpires I trust them to lube my gearbox and primary too!
Usually the problem is finding the stuff as most vendors are half hearted stockists.
Once I found Opie Oils as well as spotted one of their tankers in the south west on one of my own deliveries. I've stuck with them. Always got stock when I need it.”
