HIGHGRADE Lubricants is an Independent AMSOIL Dealer. We distribute AMSOIL oil and lubricant products nationwide via our website where you can shop online. Please visit our website and use the AMSOIL Lookup to find the products you need. Our popular products include AMSOIL Signature Series, Interceptor, Diesel oil and Signature Series Max Duty to name a few. Visit our online store and buy now to get free shipping and up to a 25% discount! AMSOIL INC is a top end premium 100% synthetic motor oil and lubricant producer. Use our website to sign up for an AMSOIL preferred customer membership and free catalog request. Discount, benefits and promotions available! more... See more text