I thought about going that route, but i didnt want to invest the time in chasing it down like that
The truck is at 96K miles and the service interval for plugs is 100K, so they all had to be done anyway
The coils, i could not find a service interval for but I figured, they all have the same miles under the same conditions...kind of like bulbs, if one of them burns out, the other one usually isn't far behind
Plus, I liked the opportunity to go with some hotter coils to hopefully get a little bit better fuel mileage out of the truck
