Go to www.amsoil.com click on dealer locator (highlighted in yellow, top right side) enter zip code and there you go!
I have done this.......not all of the dealers carry all the products. I am assuming sean is looking for interceptor.
go to their web site and for 20 bucks you can sign up as a preferred customer and buy it yourself for not much more than you can get it from a dealer. That's what I do because i run it in all my stuff and it's a lot of stuff so it pays for me to do it that way. They ship it to my door, I often would buy for my buddies so we would all split the shipping. They'll also give you a butt load of tech materials to read, order forms for shirts and cool stuff.