Harley sportster- in which the engine oil is separate from the transmission. No catalytic converter.
Which would be a better additive in this engine? I'm currently using Pennzoil YB 20w50 dino (high moly count, low Zn/Phos) in the engine now but thinking about valvoline VR dino (high zinc/ phos but no moly additive). They are both readily available and cheap.
Which would be a better additive in this engine? I'm currently using Pennzoil YB 20w50 dino (high moly count, low Zn/Phos) in the engine now but thinking about valvoline VR dino (high zinc/ phos but no moly additive). They are both readily available and cheap.