What Are the Best Spark Plugs for Normal Use?

Spark plugs are essential components of your ignition system. They’re responsible for supplying the spark that ignites fuel and starts the combustion process. However, not all spark plugs are created equal. You’ll find “normal” plugs on the market, but there are also some rather exotic sounding alternatives. If you’ve found yourself wondering what the difference was between iridium, platinum, “Splitfire®” plugs, and other options on the market, it doesn’t have to be confusing.

Types of spark plugs

First and foremost, high performance does not necessarily mean longer life. If you’re thinking about spending a lot of money on high tech spark plugs, understand that you might actually have to replace those sooner than if you’d just gone with the OEM recommended plugs.

  • Copper: Copper spark plugs have the shortest life on the market, but they’re the best at conducting electricity. You can expect to replace these roughly every 25,000 miles or so (a great deal depends on your driving habits, as well as your engine’s condition).

  • Platinum: Platinum plugs aren’t really designed to deliver better conduction for electricity, but they do provide a longer overall use life.

  • Iridium: Iridium plugs are similar to platinum plugs in that they’re designed to offer a longer lifespan. However, these can be finicky, and gapping them can actually damage the electrode, so many mechanics recommend against using them in a stock engine.

  • Exotic Tips: You’ll find a lot of different tip designs on the market, ranging from split tips to dual tips, and even quad tips. Ostensibly, this is supposed to deliver better spark, but there’s no evidence they do anything other than cost you more at the checkout counter.

Really, the best spark plugs for normal use are probably the ones that came in your car’s engine from the manufacturer. Check your owner’s manual for the automaker’s recommendation, or speak with a trusted mechanic.


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Torrieanto

11 years of experience
578 reviews
Torrieanto
11 years of experience
Hyundai Elantra - Brake Pads Replacement (Front) - Clearwater, Florida
Amazing workmanship, pays attention to detail, and treated me like a person. Not as a number. Thank you very much Torrieantos!!
BMW 535i - Brake Pads Replacement (Rear) - St. Leo, Florida
He was fantastic, came on time, great communication, and took care of the service great. Thank you.

Nick

9 years of experience
12 reviews
Nick
9 years of experience
Toyota Corolla - Brake Pads Replacement (Front) - Elk Grove, California
I am very satisfied he was very professional and was quick and did an amazing job I would definitely recommend him!!

Robert

30 years of experience
596 reviews
Robert
30 years of experience
Jeep Wrangler - Brake Pads Replacement (Rear) - San Jose, California
Robert was very honest about not needing a service I had requested and was also committed to only using quality parts as to not cause troubles down the road. I highly recommend him and wouldn’t hesitate to have him work on issues in the future.

Alexander

5 years of experience
55 reviews
Alexander
5 years of experience
Lexus RX330 - Brake Pads Replacement (Rear) - West Jefferson, Ohio
I had never heard of your mechanic but I am so GLAD that I did. My Lexus had a parking break issue so I could not move it. Alex came and looked over my SUV and verified it was the parking break but he also found that my rear brakes and rotors were horrible. When we tried to start it he found out the alternator was prohibiting it starting even tho I just got a new battery. Alex had to come back to do all of the work but it is done and we are grateful. Alex is so nice and so extremely knowledgeable. He is VERY car smart but humble. Answered every question we had. Just so grateful he was our mechanic for my vehicle. The price was VERY reasonable. We will definitely use your mechanic again and hopefully we will be able to get Alex.

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