Originally Posted by CoreyMS
I've got to run them some more to tell but the other day I swapped to the new motorcraft sp-534. It's the new plugs they are putting in the 2013's. They all came gapped at .30
I had no reason other than to tinker but I tell ya it feels a little smoother. Probably just mental.
Funny you bring this up,i don't think it's mental at all here's why.I had a 2011 F-150 with EcoBoost.On April 1st i got a 2013 F-150 with EcoBoost and it for sure idles and runs smoother then the 2011.My buddy rode in the truck 2 times now and he also said it feels smoother then the 2011.