In this video I break down my TOP 5 spark plug picks for fuel economy in 2026, and I keep it focused on what actually matters for DIY drivers: smoother idle, cleaner combustion, faster cold starts, and fewer misfires that quietly kill MPG. I talk through the common plug types people are shopping for—iridium, platinum, and “performance” options—and how the right match for your engine can make the car feel sharper on throttle without turning your tune-up into a guessing game. My main takeaway is simple: spark plugs aren’t magic, but the wrong ones (or worn-out ones) absolutely can cost you fuel and drivability. If you’re chasing better gas mileage on a commuter, SUV, or truck—or you’ve got a high-mileage engine that’s starting to feel lazy—this is the checklist I use to narrow down the best options and avoid the usual mistakes. I also dropped my updated link so you can compare the current picks and grab the best deal without digging through a million listings.