100% Synthetic Racing Lubricant Based On Motul'S Proprietory "Doubleester-Technology". Exceeds All Manufacturers Specifications And Standards. Recommended For Use In All Superbikes And Performance Bikes Manufactured By Yamaha, Honda, Suzuki, Ducati And Others. . Synthetic oils are chemically synthesised to meet the exacting demands of modern engines. This makes them more expensive to produce, but because they are tailor-made they provide the best performance, protection and fuel economy. They also remain stable at very high temperatures and fluid at very low temperatures.Part-synthetic oils are a blend of mineral and synthetic oils. They provide better performance, protection and fuel economy than mineral oils, but not as good as a full synthetic. Mineral oils are made from naturally occurring crude oil which is refined and processed to remove waxes and impurities.