Originally posted by ZetecGL:
i run premium in my car all the time, it runs alot better.




I also run premium all the time. I think that the Zetec has a very touchy knock sensor. With crap 87 octane, you get minor deto causing the PCM to pull spark and add more fuel. This kills your power and hurts your mileage.

BTW, I get about 25mpg city. I also have a Pb foot. Actually I think I may have a mercury foot. (heavier than lead )


BP

Last edited by ButtonPuncher; 02/26/06 03:35 AM.
Ben ---'96 Contour GL * Zetec ATX * Tan on Black steelies--- +++JRSC M62 Under Construction+++ My big-a$$ mod list.