if anything i would be runing 10-40 or greater due to anything lower they take friction modifiers out i run 10-40 syn in all my rides if lower go with a high milage oil reason in highmil oil they add the friction mods so u pay more cash for it only reason i say this is i have talk to a guy i know really will that works with the oil companies its messed up but he said its how they get ya
