Whether you drive a high-performance racing car, a truck, a motorbike, or a family car, K&N has one of the best motor oils in the industry designed to ensure reliable and smooth engine operation. the all-weather motor oils deliver excellent performance and engine protection and will keep your car running smoothly in both cold and hot temperature conditions. K&N's advanced car oil is lab-tested to ensure the quality meets rigorous OEM standards. The motor oil you use in your car is what keeps it running like new. Quality oil helps protect the engine components that are crucial to its longevity. K&N brings you full synthetic ultra-premium motor oil that offers premium engine protection. This superior engine oil is formulated with unique additives to help minimize sludge buildup and harmful contaminants and is API certified for dependable quality and performance. Car oil by K&N meets industry standards and is made in the USA.