In my very humble opinion for motorcycles and four wheelers, Amsoil has an awesome line of oils. To me, they really shine in the power sports arena. i live in WI and I can't tell you how many guys up here run it in their snowmobiles, quads, motorcycles, outboards, inboards, etc.
My ATV is quite happy with Amsoil Ow-40 and a Napa Gold filter. The extra cost of the Amsoil 0w-40 over the Mobil 10w-40 is minimal when I know my 6500 dollar machine is protected in very hard and muddy riding.
My ATV is quite happy with Amsoil Ow-40 and a Napa Gold filter. The extra cost of the Amsoil 0w-40 over the Mobil 10w-40 is minimal when I know my 6500 dollar machine is protected in very hard and muddy riding.