06 E350 extended, seats pulled for a cargo van. Purchased at 26,000 now 207,000. Synthetic oil every 5-6,000 miles, tranny fluid every 50,000, anti-freeze at 50K and 150K. Plugs at 100K and i COP. Was taking it in for plugs, COPS and tranny fluid when the tranny went. Like the van enough that I'm putting in a 5 year 75K mile warranty for $2,700 with synthetic fluid.
Sure hope that doen't bite me in the butt. Uses about a quart of oil every 5,000.
I am the original owner of a 04' F150 5.4L XLT 4x4 with 298K miles on it and up till a month ago it was running strong. Darn Chipmunks chewed the Main Engine harness to the COPs. I am in the process of putting it all back together after getting a new harness. Hope it runs just as good as it did or better when I am done. The Truck is all stock except for a K&N air filter.
I have a 2009 E250 with the 4.6 in it. I bought it almost 3 years ago with 104,000 miles and it now has 118,000 miles. Obviously I'm not a high mileage driver, but when you live on a 57 square mile island with mostly forests and mountains there isn't a lot of driving you can do. The van was a one owner commercial vehicle prior to my purchase and was obviously very well maintained. At 118,000 miles I think it's just about broken in and ready for regular service.
2000 F150, 4.6L PI motor, 195,000 miles of hauling hay, a 7k dump trailer, and even a car hauler a couple times. So far it's gotten plugs a few times, COPs once at 185k miles, and a new fuel pressure regulator about the same time as the COPs, and otherwise normal maintenance items. Other issues, new fuel pump @ 170k miles, and the 4R70W got some Sonnax goodies and 'JMOD' at @ 150k miles.
When the 4.6L finally lets go, I've got a 5.4L with ported PI heads and baby cams sitting in a bag in my shop waiting to go in.
1998 Lincoln Continental, 4.6L 4V, 256K miles and going strong! Even the transmission is all original, knock on wood. Recently had to replace the alternator, the a/c compressor was replaced @ 200k miles, normal maintenance otherwise. It does leak a bit of oil these days, but can't complain, it still gets up and boogies when you ask it to.
1997 Merc Grand Marquis, 4.6L 2V non-PI, 137k miles, just getting broken in. Just bought this one from a charity auction for kicks, still has original dated plug wires, and the plugs sure looked original too. I put some fresh gas in it, made sure it had oil and water, jumped it and drove it home. I live dangerously, lol.
I only have 52k on my 2000 sd but about 40k of that has came with at least 8k lbs hooked to it. Had two coils go out at about 45k miles, but no other issues. Our 98 e series van has a 5.4 with 150k miles and had two coils go out at 148k miles. Still runs like new.