sparkplugs?
Postmaster
Joined: Oct 2006
Posts: 4,816
Likes: 1
From: Davis & Newcastle, CA
Looks like you need Autolite #25 or Champion #18. I'd go for Motorcrafts though. You can buy them at Rockauto.com for cheap cheap 
Whatever you buy, get copper element plugs, no platinum. These trucks hate the platinum plugs.
Whatever you buy, get copper element plugs, no platinum. These trucks hate the platinum plugs.
Senior User
Joined: Nov 2007
Posts: 320
Likes: 0
From: Southeast Idaho
Oh-oh! I just put platinums in mine (351). What's wrong with them? I have never bought into the platinum thing but this time I talked myself into it because I got them for $2 a piece and the standards were $1.80.... Just curious.
Should I get rid of them or run em?
Should I get rid of them or run em?
Postmaster
Joined: Oct 2006
Posts: 4,816
Likes: 1
From: Davis & Newcastle, CA
Lol. Some guys have been able to run them just fine, while a lot of other guys used them and plugs fouled as soon as they ran the motor. It's kind of a hit and miss thing. But nobody has had any problems with the copper Motorcraft plugs so must of us just stick with those
Senior User
Joined: Nov 2007
Posts: 320
Likes: 0
From: Southeast Idaho
So if they didn't foul already I should be good to go? I don't want to be on a trip pulling my trailer somewhere and start having troubles. That takes away from my beer time you know.... I knew I should have put in Motorcraft!!! I shouldn't have read this thread either then I wouldn't know any better..LOL!
Postmaster
Joined: Oct 2006
Posts: 4,816
Likes: 1
From: Davis & Newcastle, CA
Originally Posted by dixokai
So if they didn't foul already I should be good to go? I don't want to be on a trip pulling my trailer somewhere and start having troubles. That takes away from my beer time you know.... I knew I should have put in Motorcraft!!! I shouldn't have read this thread either then I wouldn't know any better..LOL!
You should be okay, if anything you'd just lose performance big time when the plugs start to go south. If you're really worried about it, change em out for some copper Motocrafts. Rockauto.com has them for pretty cheap.
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Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
copper motorcrafts are the way to go.
motorcraft plats sometimes work well but any bosch plat is crap.
motorcraft plats sometimes work well but any bosch plat is crap.
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Thread Starter
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Senior User
Joined: Nov 2007
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Originally Posted by Skandocious
Looks like you need Autolite #25 or Champion #18. I'd go for Motorcrafts though. You can buy them at Rockauto.com for cheap cheap
Whatever you buy, get copper element plugs, no platinum. These trucks hate the platinum plugs.
Whatever you buy, get copper element plugs, no platinum. These trucks hate the platinum plugs.
Thread Starter
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Senior User
Joined: Nov 2007
Posts: 275
Likes: 0
Originally Posted by Skandocious
8 x $4.11 = $32.88...
To me that's cheap insurance...
To me that's cheap insurance...
Senior User
Joined: Apr 2001
Posts: 278
Likes: 6
I always run Motorcraft platinum plugs in my old 460. I have about 60,000 on my current set, and around 220,000 on the engine itself. I usually change the plugs at about this mileage. This is my third F250 with this engine, and the two previous ones went to 300,000, I am guessing this one will too. Works for me, but your mileage may vary.