Full synthetic motor oil outperforms conventional and synthetic blend motor oils in nearly all aspects of engine protection. A full synthetic starts with a quality base oil. It’s combined with an additive formula that enables it to provide superior protection against friction, and resist burn-off, oxidation, shear, and sludge. This additive formula includes detergents, anti-wear agents, friction modifiers, dispersants, viscosity index improvers, and antioxidants to help the engine run better.
Oil molecules come in all shapes and sizes. During the synthetic motor oil manufacturing process the oil molecules are broken down and rebuilt into the exact shapes and sizes that better resist chemical attack and oxidation.
At higher engine temperatures, oil can burn off, depleting the overall oil level and leaving behind thicker oil that affects performance. Full synthetic motor oil resists burn-off much better than conventional motor oils.
Full synthetic motor oil also resists oil oxidation better than conventional oil. Oxidation occurs when oil molecules bond together, causing deposits that can lead to reduced performance. Full synthetic motor oil helps to prevent engine deposits. That results in smoother oil flow and cleaner engine operation.
As motor oil travels through the engine, some of the additives can be sheared - literally cut in half - by high-speed engine parts. That results in a “thinning” of the oil. Full synthetic motor oils resist shear under heavy loads better than conventional oils. This helps synthetic motor oil maintain its viscosity grade, offer better engine protection, and withstand more extreme engine conditions.
Finally, sludge can form during low-temperature driving when water and fuel condense and mix with motor oil. This sticky mixture may block oil flow through the oil pump, oil passages, and oil filter. Full synthetic motor oil is formulated to provide an extra level of sludge resistance, breaking up sludge-forming particles.