In the past I was able to buy an additive to "make any oil a high mileage oil". I cannot find it anymore, which leads to the question.
Why do oil manufacturers make whole extra product lines of oil labeled as high mileage, when they could just market an additive that could be added to any oil. My favorite oil PU apparently does not have a high mileage oil but I can get a high mileage oil in their lower quality motor oils. I'm torn, I want PU but I also want the high mileage stuff.
Why do oil manufacturers make whole extra product lines of oil labeled as high mileage, when they could just market an additive that could be added to any oil. My favorite oil PU apparently does not have a high mileage oil but I can get a high mileage oil in their lower quality motor oils. I'm torn, I want PU but I also want the high mileage stuff.