I just had my first free oil change at my Jeep dealership where I bought my Wrangler. They stock AMSOIL and used it with no extra charge. Another Jeep dealership near me also stocks AMSOIL. You might ask your dealership to stock it as well. Dilema solved.I like amsoil. I use it in my GSX-S1000F. I'd use it in my Jeep too, but I'm still on the "free oil chnge" deal from the dealer when I bought it, and I don't think it makes that much difference. Any good synthetic with a modern engine is going to give you close enough to the same results that with regular oil changes shouldn't make a bit of difference. (Lord, forgive me.. I got sucked into another oil thread).