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Old 18 Aug 2007, 03:30 pm
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Default Spark plugs for 2004 TSX ? Help?

It has been 50000 miles and i haven't changed the plugs yet....does anyone know if I should do it soon, also is it terribly difficult to do it my self... i know that you sometimes have to gap them or something like that is this necessary in a TSX? thank you
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Old 18 Aug 2007, 03:34 pm
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TSX plugs should last 100,000 miles. Read your owners manual for the correct time to replace them.
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Old 18 Aug 2007, 03:36 pm
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Spark Plugs i believe are done at 30K intervals.I believe in acuras they require NGK.Check your owners manual. it will tell you the Gap and the kind of plugs
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Old 18 Aug 2007, 03:40 pm
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The plugs should be good for 100,000 miles.The gap is 0.039 to 0.041 inch. Any plug that has a out-of-spec. gap should be replaced and not regapped. (Don't ask me why -- I am just going by the Service Manual). They apparently come pre-gapped.Plug Numbers: NGK is IZFR6K11 (apparently OEM)DENSO is SKJ20DR-M11Q.E.D.Regarding the gap, here is what the Service Manual states on P. 4-21,, "Do not adjust the gap of iridium tip plugs; replace the spark plug if the gap is out of specification".Iridium plugs are the stock plugs for the TSX but you don't need them. Any stock honda plugs are fine, iridium costs 6x than reg plugs for not much more of a difference.Be sure to use a small amount of anti-seize. I prefer the silver material over the brown and torque them down at about 13 ft lbs.Hope that helps.
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Old 18 Aug 2007, 03:44 pm
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Acura says at 105k miles I believe, In our shop we usually like to change them at 60k miles. Buy NGK plugs and they are generally gapped correctly. It is fairly easy to change the plugs on the TSX because they are right on top of the engine under the coil packs
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