Spark Plugs!?

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Cadillac Catera and Cimarron Forum Discussion, Spark Plugs!? in Past Cadillac Vehicle Discussion; Hello im still fighting with my gas millage - 14mpg..... so how about spark plugs, i currently have oem Bosch ...
  1. #1
    JohnJJO's Avatar
    JohnJJO is offline Cadillac Owners Fanatic
    Automobile(s): 2000 Catera Sport
    Join Date
    Mar 2012
    Wilmington, NC

    Spark Plugs!?

    Hello im still fighting with my gas millage - 14mpg.....
    so how about spark plugs, i currently have oem Bosch spark plugs (by owner manual) was replaced little over 20000 miles ago

    but in my previous experience with bosch i always had bad results, maybe i have to go with something else???

    Guys what spark plugs are you using???? whats your gas millage????


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  3. #2
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
    Automobile(s): 2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
    Join Date
    Sep 2010
    East Boston MA.
    Stick with the OEM plugs. If the engine isn't misfiring, the plugs aren't the problem.

    Have you checked the FPR?
    Have you had your codes pulled?

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