Review on 🔥 NGK (3459) ZFR5N V-Power Spark Plug: Boost Performance & Efficiency with 1-Pack by Alex Taylor

I don't remember installing these connectors on my 2001 Cherokee 4.0L straight-six three years ago, but when I wanted to reinstall In this one Earlier this year I pulled six of these NGK spark plugs out of my Jeep only to find I could leave them there for another three years. Very clean, electrodes and ground and insulators. Mine had 0.035" of play and these measured 0.001" to 0.003" more so wear was minimal and had no noticeable impact on performance or mileage. I changed them because I couldn't remember how long they worked. I have used NGK spark plugs in various cars over the years and have always been happy with their performance. I put NGK spark plugs in the corner of a toolbox drawer and they will return to one of the jeeps. They don't look like they've driven over a thousand miles, which was no less than 14,000 miles.