I went to synthetic at about 5500 mi. I'm trying the relatively new Pennzoil flavor.

Funny, back a long time ago, like back when I actually had one color of hair, the litmus test at a local race engine shop was "which oil you gonna run in this motor?" If you answered Pennzoil, you got a race engine. If you answered Valvoline, you got the direction to the door. <img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" /> I like Pennzoil so we'll see...

Mike