BRUTE448

how has your engine faired? i saw awhile back you were cons. about having to get a short or long block as I and some others have had?

Koolponycar

Yes still run the air aid panel filter in stock box with air aid jr tube for the engine cover to fit. I gaped my plugs to .044 even though they call for a larger gap cause I run performance tunes and no issues with truck. I also have a catch can installed that I check every couple months and dump. usually just a couple of tablespoons full in there as my oil stick seems to stay the same on my 5k or every 6months which ever comes first oil change intervals.

Koolponycar

So far so good. I took the truck in to have it checked for a ever so faint knock that seems to be gone, and mainly the occasional low rpm 1100 ping or rattle. Ford said they could not find anything but did extend my warranty on out through 2016 and I believe 75K miles.I put a little sea foam in my gas and a small amount of marvel mystery oil in my crank case before a oil change.I haven't used any of those since then. I also have been using in moderation lucas upper cylinder cleaner in my gas. I haven't used any lately since running 93 octane and I mix a little E85 about $10 bucks worth every 5 or 6 fill ups. Currently on stock tune and runs perfect, no noise,ping or knock. I have hooked up the x4 and checked the knock on the stock tune and it really swings from -4.99 to 5.99. I will probably stay with the lucas upper cylinder cleaner on a regular basis and the 93 gas as long as it is cheaper like now.

mattgw86

You're a little ahead of me. I'm at 80k on my '14 and was wondering when I should check or change them. I may just wait a few months and do it at 100k along with brake and trans fluids...