AVOID These 5 Spark Plug Brands And 10 That Actually Lasted 80,000+ Miles

Not all spark plugs are created equal—and choosing the wrong brand can cost you performance, fuel economy, and even engine health. While trusted names like NGK and DENSO are known for long-lasting reliability, other brands often fall short due to poor materials or inconsistent quality.

In this video, we break down 5 spark plug brands you should avoid—and 10 that have proven to last 80,000+ miles with proper maintenance. From iridium longevity to real-world durability, you’ll learn which plugs actually deliver and which ones can cause misfires, rough idling, and wasted money.
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