My 06 Mustang GT is in the shop getting some work done. I would like to pick up a case of Royal Purple after work but I can't remember what viscosity oil I need. Can anyone here help me out?
I hate paying more for 5w20.......................I know most of you hard die-hards, but 5w30 is goin in next - gas economy bah (so wat I've heard by goin w/ 20)
