I purchased a set of 4 Autolite XP5863 Iridium XP spark plugs for my 2019 Ford Ranger 2.3 4cyl. Ecoboost. At 41,000 miles i didnt think my factory platinum spark plugs would need replacement. My truck was running rough & on acceleration between 2500-3500 would stumble/misfire. I took a chance on replacing the spark plugs before bringing my truck for service because the spark plugs are easy to change. These Autolite spark plugs smoothed out my idle, gave my truck better performance & fuel economy. These spark plugs also eliminated my stumble/missfire. These spark plugs are a great value & easy to change on a Ford Ranger & have a copper core which is a better conductor of electricity. I don't mind changing them because they are easy to change. My factory double platinum did not last & had to be changed at 41,000 miles. Hand tighten ..don't over tighten & don't forget to use anti-seize on the spark plug threads & dielectric grease inside of the ignition coil boots so you don't get radio static. The service from Amazon was top notch. Received my spark plugs within 2 days. You can't go wrong with these spark plugs.