OK..I need some feedback. Pretty big chunks of cast iron and steel severe sliding wear in my Vortec V6 1998 GMC Sierra oil sample. I'm thinking of switching to Mobil 1 0W40 SuperSyn for extra wear protection and thicker oil wedge. Any responses? You think this will void my warranty if I switch?
p.s. slow leak of glycol into the engine as well, which will be repaired under Optimum Warranty.
p.s. slow leak of glycol into the engine as well, which will be repaired under Optimum Warranty.