Spark Plug Glendora

Spark Plug – Glendora – The 100,000 Mile Tune Up Myth

Some auto manufacturers recommend 100,000-plus mile spark plug replacements. Many consumers seem to believe that all cars have “100,000-mile plugs” . . . to the detriment of their car’s fuel efficiency and performance.

Spark plugs have become more reliable and longer-lasting over the decades. Some premium spark plugs are in fact designed to last up to five years or 100,000 miles. In fact, to the surprise of many late-model vehicle owners, approximately 13 vehicle manufacturers still recommend more frequent spark plug changes in several of their vehicles. These include premium nameplates like BMW and Porsche as well as:

  • Ford
  • Chrysler
  • Jeep
  • Mazda
  • Suzuki
  • Kia
  • Mitsubishi
  • Toyota
  • And others

The Right Option for Your Vehicle

On the list is the 5.7-liter HEMI V8 found in thousands of Chrysler, Dodge and Jeep vehicles – it features copper core plugs and requires a 30,000-mile spark plug change interval. Several Toyota V6 applications including the 2004 3.4l Tacoma and 4Runner also need spark plug changes every 30,000 miles. Ford trucks like the Explorer and Ranger with the V6 SOHC engine have plugs that need changing every 90,000 miles.

When we, at Certified Automotive Specialists replace spark plugs, I recommend using spark plugs that the manufacture recommends. Using a different brand of spark plug in some cars may cause irregular drivability concerns, such as a slight rough idle, hesitation or even a random stall when stopping.

Spark plugs help in the overall performance of a vehicle, but if ignored, can degrade over time and lead to performance issues. Unfortunately, many drivers are under the impression that every new vehicle doesn’t require a tune-up for 100,000 miles,” said Dave Bucksaw, technical trainer for the Autolite. “But conducting tune-ups on a routine basis is important for maintaining both fuel efficiency and performance.”

Buckshaw also points out how important it is to keep in mind our driving habits and the demands we put on our engines when determining the replacement intervals. Heavy stop-and-go driving (like rush hour in a typical city), excessive idling, towing, cold starts and several short trips all constitute extreme driving conditions and may warrant earlier change intervals.

Glendora drivers check your owner’s manual or contact us at Certified Automotive Specialists to find out what interval is recommended for your vehicle.

If you have questions about this and your vehicle in general, contact us at Certified Auto Specialists and we will advise you of the various maintenance recommendations for your car, truck, van, SUV, crossover, or motorcycle. Call us anytime at 626-963-0814 to schedule a maintenance appointment for your automobile, or stop by our location at 476 S. Vermont Ave, Glendora, CA 91741.

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