Thanks for the info Gabe. I will look at the local auto parts store for the 15W50. I use Mobil 1 in my truck and I am sold on its quality. Like I said before, I am not looking to save money on oil, just put the best protection in the machine. I think it is silly to spend over $5,000 on a machine and try and save $1 on a quart of oil.

 

Amsoil 10-40 or 20-50 works great in quads

 

What about Mobil 1 MX4T? Anybody have any experience with it? I just got some at Wal-Mart the other day and haven't had a chance to use it yet.

http://www.mobil1.com/mobil1_racing/...cle/index.html