should i change spark plugs?
I have a base 986 which i hardly ever use. Im not sure i cover 1000 miles a year in it. Regarding servicing i make it a point to still change the oil and filter every year. This morning i realised that its been close to 4 years since i last changed the spark plugs. That means that maybe theyve got just over 3000 miles on them. Should i still change them? I use denso iridium.
Thanks in advance |
I just changed mine at almost 50K and they looked perfect. Can't tell any difference in performance or fuel milage. I'd say you were good for a while.
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Realistically, you should replace the plugs at least every 4-5 years, regardless of mileage. This is to prevent the steel plug from taking a seat to the aluminum head. Use a small dab of anti seize, torque to spec, drive it like you stole it..............
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With so few miles per year, I'd think about doing a major service on 5 yr intervals (coolant, coolant cap, brake fluid, plugs, fuel filter, etc). Otherwise it might take 15 years before you do any maintenance.
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thanks for the info guys. regarding coolant, I change it every 3 years, and oil and filter every year. its the plugs i find not necessary to change often.
but i think its time I took them out to check them at least! What do you guys think about the Denso iridium plugs? Any recommendations? |
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Wow, today I just installed 6 new Bosch FGR 6 KQE plugs in my 2004 S 3.2L. Is there a problem with these plugs?
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http://www.boschautoparts.com/SparkP...ionPlug238.jpg I had heard there had been problems with the side electrodes. The Iridium's we use are single side electrode Denso's, and they have been working very well for us. |
I have a 1999 Boxster and I change the plugs every 30,000 miles.
I do believe there is not a true need to change them that often, but I do it myself and plugs are cheap. I use Bosch 4-electrode "Platinum Ir Fusion" #4503 plugs. I get them from RockAuto for $6.16 per plug. The last time I purchased them from RockAuto I got a $24.00 rebate. Based upon this thread "Should I Change Plugs?", I just ordered a new set. Unfortunately now RockAuto only sells them in packs of 8. And the rebate is still available until 31 Dec 2013. I see this as a win win situation. Just my two cents. MNC-I |
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Thanks for the info guys. I think i will continue to use denso iridium though. I will get them checked out at the next service
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