Depends on vehicle Electronic ignition fuel injection ? longer intervals between tune-up 100,000 miles not unreasonable Points, Carb.? probably every 15-30,000 miles
Standard spark plugs, 50000 miles. Platinum tip spark plugs, 100000 miles.
If you have platinum spark plugs, 100K. If you have standard plugs, 50K.
when do you change spark plugs
Generally I change platinum plugs at 100K and regular plugs at 50K.
Change the plugs at 100,000 miles or earlier if the engine is not performing as it should.
air filter every 20,000 miles, i change spark plugs once a year
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.
every 200,000 miles
Depends on the type of spark plugs. Factory plugs around 70 - 100k depending on the condition of the plugs. I would replace the spark plugs out with some AC Delco iridium plugs they will last you 100k+.
To change the spark plugs in a 1997 astro van do I have to change the spark plugs from the bottom of the engine/
Every 30,000 miles except platinum plugs