Every 100,000 - change wires also.
8 spark plugs
when do you change spark plugs
Standard spark plugs, 50000 miles. Platinum tip spark plugs, 100000 miles.
If you have platinum spark plugs, 100K. If you have standard plugs, 50K.
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Generally I change platinum plugs at 100K and regular plugs at 50K.
go in from the wheel well.you will have to take the splash guard off but its worth it!
air filter every 20,000 miles, i change spark plugs once a year
Change the plugs at 100,000 miles or earlier if the engine is not performing as it should.
The manufacturer recommends that the spark plugs are changed every 30,000 miles. Many individuals have experienced a much longer life for the spark plugs.
platinum plugs 75,000 miles. resistor plugs 30,000.
To change the spark plugs in a 1997 astro van do I have to change the spark plugs from the bottom of the engine/