How often should you change your spark plugs?

I seem to have miss-placed my service manual. I have a 2003 Dodge Intrepid and I last changed them in February of 2007.How often should you change your spark plugs?I replace mine every 10,000. Don't waste your time trying to re gap them yourself. They only cost about 5 bucks each and your better of just getting new ones anyway. Don't buy those silly platinum ones either, they only last about the same as the regular spark plugs.How often should you change your spark plugs?A timepiece has little to do with whether something mechanical is worn or not.



I bought a vehicle with 150,000 miles that specified a 100k interval and found the original plugs all looking normal considering the number of miles they had. I only changed them as a rule while looking for a stumbling problem that turned out unrelated.



You should change plugs when the engine has issues but air cleaner and intake related parts get a cleaning first.



Try the link below.How often should you change your spark plugs?Any modern platinum tipped spark plug like your truck probably had installed as original equipment can last up to 100,000 miles. I have 90,000 miles on the original plugs in my 2000 Taurus and the gap has barely worn in all those miles. The car runs great. If the gap were a lot wider than specification, I might worry about excessive strain on the ignition system.How often should you change your spark plugs?usually it is every 60,000 to 100,000 depending on the type of plug. platnium and iridium tipped plugs last longer and have better spark. they may cost more but they are worth it. you would also need to replace a plug if it has been fouled out which means it has oil on it, graphite shading, antifreeze, lean/rich conditions. if you take a plug out and look at the end there will be a little elbow piece and a piece directly above that if it is worn unevenly not straight and there is a big gap replace it.How often should you change your spark plugs?Every 30-40 thousand miles but you should take them out and clean them with a wire brush or a wire wheel every normal maintenance.How often should you change your spark plugs?It is due every 30kHow often should you change your spark plugs?75,000 miles......How often should you change your spark plugs?Ugh, anyone want to change the plugs on my LT1 Formula? :(