Installed them on my 2006 caravan 13 months ago. The car had about 108,000 now it's 138,000 and so far so good with these spark plugs. If they continue to work well they will show up again after about 158,000 miles or 50,000 uses. Just checked my mileage and 24.7 mpg overall, mostly highway, with the rear seat reclined and only a bench seat in the van.
Upgrade Your Mazda MX-5 Miata With CravenSpeed'S USA-Made Door Bushings
39 Review
Upgrade Your Driving Experience With Lunsom'S Automatic Shift Knob: High-Quality Metal Car Shifting With Push Button & Long Stick Gear Head In Black
38 Review
2007-2017 Jeep Wrangler JKU 4 Door Sunshade Mesh Top Cover - Durable UV Protection With US Flag Design - Voodonala
31 Review
25Pcs Fender Liner Screws For Toyota Avalon Camry Corolla Scion Lexus - OEM #90159-60498
35 Review