B Bad JuJu New member Jul 7, 2010 #1 Recently I heard that some car brands purchase low-grade motor oil and slap their brand label on the bottle. Is there any truth to this? What makes Mobil 1 5W-30 any different from Toyota's 5W-30?
Recently I heard that some car brands purchase low-grade motor oil and slap their brand label on the bottle. Is there any truth to this? What makes Mobil 1 5W-30 any different from Toyota's 5W-30?
