As your Authorized AMSOIL Dealer in Encinitas, Synthetic Oil Inc. is dedicated to providing one of the world’s premier surf and coastal communities with the highest quality synthetic lubricants. Synthetic Oil has proudly served the entire San Diego metropolitan area for over 30 years. From the salt-heavy air near Moonlight Beach to the steady cruise along the Historic Highway 101, our AMSOIL motor oils and filters are engineered to protect your engine against the unique environmental demands of the North County coastline. Beyond automotive care, we specialize in high-performance Marine, Motorcycle, and Off-Road lubricants, ensuring your beach rig, boat, or bike is ready for the Pacific or a trip to the mountains. Shop online for factory-direct shipping straight to your Encinitas doorstep.