You need to check the oners manual to be sure, but I think that since you have a V-tech engine they don't need to be changed. This is what i saw on the dealers maintenance schedule.
Actually, the plugs should be replaced at 105,000 miles according to the owner's manual and the dealer.
7/2009 : it took me around 1 hour to change all 6 plugs - it's not that bad. Get yourself a good socket wrench (I used a T shaped spring handle from pet-boys). GENTLY unplug the coil wires - do not pull on them. Use an allens wrench to take off the coil bolt. Remove the 6" coil. The spark plugs are deep down inside. I always put some anti-seize lubicant on the plugs. The owners manaul show ssmall diagram how to do it! I used NGK "id-rid-ium" plugs - Ike $6 each at pep-boys. The dealer wants $225 to do the work.
Standard spark plugs, 50000 miles. Platinum tip spark plugs, 100000 miles.
change the plugs at 60,000 miles.
120000 miles with original iridium plugs.
Follow the directions in the owners manual provided by Honda.
According to Honda, 105k miles. The maintenance schedule is at the link below. http://techinfo.honda.com/rjanisis/pubs/OM/OD0101/OD0101O00236A.pdf
Change the plugs at 100,000 miles or earlier if the engine is not performing as it should.
platinum plugs 75,000 miles. resistor plugs 30,000.
Recommended change is 100,000 miles
Every 30,000 miles except platinum plugs
No, it is not necessary to change the spark plugs on your 2003 Ford Winstar at 30,000 miles. It has Platinum Plugs from the factory and they have a life span of approximately 100,000 miles. I suggest checking the gap and cleaning them at 50-60M miles, but not replacing until around 100K.
100,000 miles according to the factoryspec.
How many miles should I have before I change my spark plugs
If they are platinum plugs, should be every 95,000 to 100,000 miles.
Depends on the year. On any Sentra made in the last 10 years change the spark plugs every 100,000 miles unless you have a misfire. In that case change them immediately. On an older Sentra change them every 75,000 miles.
If using standard copper core spark plugs, every 30,000 miles. If using platinum plugs, up to every 100,000.
Change the plugs and plug wires at around 100,000 miles or earlier if you detect a miss or loss in performance of mileage.
air filter every 20,000 miles, i change spark plugs once a year
every 200,000 miles
50,000 miles a good idea though the book says 100,000
Change the plugs and wires at 100,000 miles unless you experience poor performance or a drop in MPG. In that case change them sooner.
From the 2006 Odyssey Manual: A is an oil change, 1 is rotate tires and 4 is replace spark plugs, and timing belt. Inspect water pump and valve clearance.
If you have the original Ford plugs, you only need to replace them every 100,000 miles.
According to the owners manual, they have platinum plugs that should be changed at 100,000 miles.