In this video I break down my TOP 5 best car spark plugs for 2026, and I’m doing it the same way I approach any repair in the shop: match the part to the job, not the hype. I cover the big spark plug types you’ll actually see when you’re shopping—iridium, platinum, and copper—and what each one is best at, whether you’re chasing smoother starts, better fuel economy, or just trying to keep an older daily driver running right without wasting money. I also talk through the practical stuff DIY drivers need to know before clicking “buy”: durability and lifespan, heat resistance, and basic compatibility considerations so you don’t end up with the wrong plug for your engine. The takeaway is simple—there isn’t one “best” spark plug for every vehicle. The best choice depends on how you drive, what your engine wants, and whether you value long life, performance, or budget. If you want to see the current picks and pricing, I’ve got the link in the description to my updated list.