good info to have. anything lead based is bad for 02 sensors if you dont know that (common knowledge)
also... so u guys know. higher octane doesnt necessarily mean more HP. if you have inadequete compression or timing, the more octane will actually make the car slower (produce less power, anyways) higher octane fuel is harder to burn. it's a "slower" burning fuel and most people think that makes it "better". not necessarily. if you advance a timing curve, or raise compression, or lean a car out, you will need better gas. SVT contours require premium fuel only, although you may see better times at the track when running 87 octane, but beware! it will make your car run lean or possibly detonate! i would say that a stock contour SVT could run 87 octane quite easily, until you start messing with fuel and ignition curves.
