Which is the best sparkplug for my 08 F250, V10, Autolite HT1, Autolite HT15, Motorcraft SP507, Champion 7989 or Other (NGK, etc)?

 

I think most people will recommend the Motorcarft. For some reason they seem to be the one that works the best for the V10.

 

motorcraft..

do a search for plugs on here, and you'll find lots of info to suggest the stock plugs work best in these motors.

 

I agree with running the motorcraft or autolite on most fords. But for the 3 valve modulars, I recommend the champion. They are a one piece spark plug, when the motorcraft and autolite are a 2 piece, and you can blow the middle out and have the threads stuck in the cylinder head. Trust me I sell auto parts for a living. Seen a lot of these. I'd put the champions in mine if it was a 3 valve.

 

Not on an '08. The plugs in '08-up 3V's are NOTHING like the '05-'07's.
JL

 

Not questioning you JL, but I thought I read where the change was made during the '08 run. Early '08s would be like the '05-'07s.