My Spark plug replacement went in very smoothly thanks to the procedure I read here. I checked the resistance of the cables and they varied from 6.25 KOhms to 5.75 KOhms based on their lengths. I hope this is normal.. anybody else have any views on this?? The car is running great giving me a mileage of about 24 in the city. The old spark plugs were looking just great with a wheatish color of burn signifying good efficiency. Thanks for all the help guys!!

narrow range, and your car is running well (good MPG), then I'd say that you don't need to replace them.

will be doing the O2 sensors this weekend and I'm done with my tuneup. Hopefully, she's gonna drive like new again.

in acceleration and MPG.