J Jason Active member Sep 13, 2010 #1 i have some Rislone oil treatment but don't know if i should use it will it harm my engine? the gmc is a 1500 half ton 4.3 v6 .
i have some Rislone oil treatment but don't know if i should use it will it harm my engine? the gmc is a 1500 half ton 4.3 v6 .