As your Authorized AMSOIL Dealer in Coronado, Synthetic Oil Inc. is dedicated to providing ‘The Crown City’ with the world’s best synthetic lubricants. Synthetic Oil has proudly served the entire San Diego metropolitan area for over 30 years. From the coastal salt air surrounding the Silver Strand to the scenic drives past the Hotel del Coronado, our AMSOIL motor oils and filters are engineered to protect your engine against the unique idling and stop-and-go conditions of Orange Avenue. Beyond automotive care, we specialize in high-performance Marine, Motorcycle, and Off-Road lubricants, ensuring your yacht, bike, or 4×4 is ready for the Pacific or the desert. Shop online for factory-direct shipping straight to your Coronado doorstep.