Originally Posted by red dog

I dont rack up the miles very quick, I only have 30,000 on my 2005 f-150.
I spoke with my local ford dealer about doing the plug change before i put many more miles on her. He said he'd be glad to do it but, recommended i dont worry about the miles if its running ok. He said they havent broken anymore plugs on higher mileage trucks versus lower mileage ones. He also said they have tried pulling the plugs cold, warm, and hot and it doesnt seem to matter that way either. He said again that he would do it but, if it were his he wouldnt bother until their was a reason to. He said when they break its no big deal with the tool extractor and that they have used the tool many times and it works well. I might be looking at the new truck in the next couple years so i decided to take his advice and save some money. Like many others i have read a million posts on the plug issue, many to get them out ASAP and some to do it when theres a reason to. Dont know which is really the way to go but glad that they have the tool when they do break.