First Synthetic Motor Oil Change your oil after 7,500+ miles (semi-annually) or annually. Depending on severe or normal driving conditions and the oil that you choose. Use AMSOIL and extend the lives of your engine and transmission. With AMSOIL, vehicles and equipment: need fewer repairs, last longer, perform better, get more miles to the gallon, emit cleaner exhaust, last longer than other lubricants.......Ask about starting a retail or commercial account or a business opportunity.     About AMSOIL In 1972 AMSOIL developed the first synthetic motor oil in the world to meet American Petroleum Institute service requirements. Currently, the AMSOIL product line includes the finest quality synthetic oils for gas and diesel engines and transmissions, synthetic greases, gear lubes, industrial lubricants, air, fuel and oil filters, including by-pass filters, and other automotive performance products. AMSOIL products are provided for automobiles, boats, heavy equipment, machinery-including furnaces, lawn mowers, etc and motorcycles.   Corporate Announcement AMSOIL Signature Series 0W-30 Synthetic Motor Oil is the industry benchmark in lubrication technology. Engineered with the world’s finest synthetic base oils and high performance additives, AMSOIL Signature Series 0W-30 is designed for those who demand the absolute best in motor oil performance. The exclusive “extended drain” formulation delivers superior engine protection and maximum fuel economy. AMSOIL Signature Series 0W-30 is a premium grade synthetic motor oil that exceeds the requirements of modern, high-performance engines and older engines. It replaces other 0W-30, 5W-30 and 10W-30 motor oils and consistently outperforms competitive conventional and synthetic motor oils.   Featured Product Signature Series 0W-30 100% Synthetic Motor Oil : (1) quart bottle home featured products contact us promotions and announcements other links