Was in my usual state of brain only partly in gear at the auto parts buying oil for my Griz. Bought three quarts, but when I got home, I discovered that I had bought two quarts of ATV and one quart of Valvoline Motorcycle oil. The cans are identical if you don’t read the label. Being out of town, I called Valvoline. Engineer stated that the Motorcycle Valvoline would work fine in the ATV, but that ATV oil is not recommended for motorcycles because motorcycle engines rev much higher and so Valvoline puts in more anti-foaming agent. Just sayin.