MarcoMontana

My new 2013 F 150 5.0 is about to hit 100k miles the manual says to flush Radiator and change Plugs at 100k...


Are these necessary?

gamason

Definitely on the radiator flush. The plugs are up to you.$20 and an hour of your time doesn't seem like a lot to keep the old girl purring!

Martian

Hell, I'd do it. They're both cheap, as gamason mentioned. I get the "if it ain't broke, don't fix it," but coolant can gunk up after a while and might as well replace the plugs before they start acting up.

Pickupman66

I am about in the same boat. 97,800 on my 2013. just changed the plugs myself. $45 for Autolite XP irridium. gapped at .030 for all 6. Major idle improvement. we will see how I do on fuel mileage during this tank. I hope to do the coolant once the sun stops trying to kill us here in TN.

hinglemccringleberry

Plugs are so easy to change on the Coyote that I would do it for sure.

Blank102