I run Valvoline 20/50. Part number VV851. Says right on the bottle "NOT FOR STREET USE". Has lots of goodness inside (zinc and more). Oil filter is a K & N. I like the little nut on the back. Makes it easier to take off.
Last year at Autolite Nationals the Vavoline booth was selling the not street legal oil for 4.00 a Qt. I'm swooping on some of that this year if they are out there again.
