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03BullittClone · 09-27-2004, 07:07 AM

My owners manual for my '03 GT recommends gasoline octane no higher than 87 points, which of course I ignored, resulting in fouling my spark plugs. After a stern warning from my dealer, he replaced them under warranty. My question is this: 1) Has anyone else experienced this? and 2) What is the remedy so that I can use higher octane gasoline (assuming that higher octane = better performance)?

09-27-2004, 07:07 AM	#1 (permalink)
03BullittClone Switching Gears.... Join Date: Sep 2004 Location: Suburban Chicago Posts: 215	Fouling the Spark Plugs My owners manual for my '03 GT recommends gasoline octane no higher than 87 points, which of course I ignored, resulting in fouling my spark plugs. After a stern warning from my dealer, he replaced them under warranty. My question is this: 1) Has anyone else experienced this? and 2) What is the remedy so that I can use higher octane gasoline (assuming that higher octane = better performance)? __________________ Looking REAL Hard at an '06 Shelby!!!