Well my car seems to run better(quicker) with mid grade 89/90 gas. I run premium I feel no difference. If I had access to free dyno I would test that theory.
2000 Contour Zetec ATX Hector Mods...I got em' "Contour grills, Contour bills, check out the oil my Contour spills." 2.SLO = 17.6 at 80mph My profile
