Originally Posted by rgarner
I've not used it yet, but there are a lot of positive comments on Amazon.com. So far, nothing to scare me away.
I agree with RGARNER, I used Amsoil in my 5.3 pulling a TT with no regrets. When my Amsoil dealer moved and I traded to 2500 6.0 gasser I switched to Royal Purple as it was more available. I'm still happy, plus it actually made the obnoxious ticking that the Chevy motors make disappear. I change mine (depending on usage) once or twice a year. Since I got my 5th wheel I have changed 2 x's this year, with a Wix filter!
If all else fails at least go to Mobil 1 synthetic.
Just my 2cents!!