Boosted with extra fluid to increase oil film strength and reduce film breakdownFor engines with over 75,000 miles
It is probably easiest to think of conventional oils as synthetic oils—only with less chemical stability, easy acidification and oxidation, and shorter-lasting time with increased disintegration.Here’s why and how synthetic oils have a solid edge over their conventional counterparts.Engine parts are in constant contact with each other, moving at incredible speeds. But for the protective yet lubricating barrier of engine oils, these components will wear and break down in record time.
Most of the things you don't understand are likely API certifications. We'll help you make sense of the common ones you're likely to encounter, but first, what exactly does API mean? For example, SN is code for vehicles manufactured after 2010; SM for cars manufactured between 2002-2009; SJ for vehicles manufactured before 2001. The higher the letter, the more recent the technology of the oil. For example, more recent oils can be used for older vehicles .