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 ...
- 11-13-12 01:56 AM #1
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????
- 11-13-12 02:52 AM #2
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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