I'm Amsoil preferred customer and can get 25% off but I refuse to do business with them. I had 2 issues with them: 1) I had my call to Amsoil customer service scammed by third party which had nothing to do with my order, 2) After I bought several cases of gear oil and spent hundreds of dollars I had 3 quart bottles of unopened oil left which I put on E-bay for low price. Amsoil had problem with that. I had to explain that I'm not their authorized dealer which they prohibit from using E-bay but just a customer with few quarts of extra gear oil. Few days later I got another e-mail claiming that I use their copyrighted image which I got from google search to which I told them to shove that image up their a$$. I took picture of same bottle which was identical to one on google search to get them to shut up. Even though they have good product I can't stand that company. Using Redline Oil product now and pretty happy with it. As to where you can find Amsoil outside of direct buy look up on their website for dealers or call local auto store (my local Oriley's carries Amsoil).