The Untold Truth About "Full Synthetic" Oil

#syntheticoil #motoroil #automotive The Untold Truth About "Full Synthetic" Oil "Full synthetic" motor oil isn't what you think — in 1999, Mobil sued Castrol for calling crude-derived oil "synthetic," and lost. Dive into the real difference between Group III, IV, and V base oils, the API "starburst" certification that actually gets audited, and why a German court ruled the exact opposite way on the same word. If you buy synthetic oil, synthetic blend, or full synthetic engine oil for your car, this motor oil investigation breaks down what's really in the bottle — and what's just marketing. On our Car Repair channel Car Care Insider, we will go through car repair, car hacks and car maintenance. Stay tuned for the latest car tips and auto advice. Subcribe to Car Care Insider: https://tinyurl.com/carcareinsider #CarRepair #CarMaintenance #CarHackers