I can get most (all? ) Amsoil oils inc 0w20 0w30 and 5w30 also motul 8100 0w20, Castrol Edge 0w-30 and shell Helix Ultra 0w-30 and loads more besides. I`m guessing all of them would do a fine job but I`m trying to find the very best for my application.
Would a 0w30 or 5w30 give better protection...