Amsoil started in 1972 and they have always been at the forefront of Synthetic's technology.
AMSOIL - Synthetic Oil, Motor and Engine Oil, Lubricants, Air Filters, Oil Filters and Greases
Simply the best! All others are just copy cats.
"Maint required light" Hold the OD buttom in while turning the key to on. Hold button until you see the dashes on the OD screen disapear. Light will go off. Make sure you are on the OD and not trip a or b.