was this SL or SM 20w50?? lots of zinc.
D daman Joined Sep 23, 2006 Messages 11,277 Location Bad Axe, MI Apr 14, 2009 #21 was this SL or SM 20w50?? lots of zinc.
F fuel tanker man Thread starter Joined Aug 4, 2004 Messages 1,346 Location wytheville, va Apr 15, 2009 #22 This was SL... I think I'm going to run some SM this spring or summer to see how it compares. Dan
