Well, in all honesty on the Tritons, I think if you got into the habit of retorquing the plugs every time you change the oil, you'd probably be alright.
I really did like the Excursion. I towed a 26' Terry with it (perish the thought...) that had been double insulated in the walls and was quite heavy compared to my Excella. The Excursion pulled that trailer very well.
I didn't post all the details of my misadventure with them (it would have been twice as long and the post was too long already), but I got strung around pretty badly.
My biggest beef was being sold this extended powertrain warranty that then turned out to not cover a major powertrain failure. I was taking my four year old daughter to Disney World when this all happened. My wife, who was pregnant with my son at the time, was more upset than I'd ever seen her. Who wants to ruin a little kid's trip to meet Mickey Mouse? The Ford dealer in Richmond told me that this should be covered, and that any reputable place would cover it. However, to my dismay, I realized too late that this warranty wasn't affiliated with Ford at all, and I was led to believe that indirectly, if not directly.
We did make it down to FL about two weeks later, but had to take the car and stay in a motel. As well we didn't make it over to Orlando, but only Daytona. What I blew fixing the Excursion pretty much wiped out the possiblities of seeing Mickey and Goofy for that vacation. Still haven't made it to Disney World... maybe this summer. Any recommendations on a good campground in the area? I like the beach; wife and kids want to go to see The Mouse. Maybe two campgrounds; one near Mickey and one near the Atlantic?
Anyway, if anybody out there really wants a vehicle with a Triton, keep an eye on your spark plugs. I never even thought to, as they were supposed to be 100,000 mile plugs. I'd never heard of a plug spitting out of a head like that. Keep 'em torqued and you should be OK. The rest of the vehicle was sure nice.
A plus for me now: the hum of the Cummins puts my kid right to sleep. Makes travel easier