Average life exspency from ford 6.8 v10?

I just bought a 2000 ford f250 4x4 with the v10. It has 166k miles with new heads. Motor uses a little oil bit runs good. Guy just put a new 5 speed tranny in it 50k miles ago. It has 430 rearend and a new frony wheel bearings. I paid 2500 for this truck did I do pretty good?

Can the Ford dealership reprogram the computer for bigger tires?

For a 2015 Ford F-350 6.2, can the dealership reprogram the trucks onboard computer to accommodate larger tires so the speedometer, cruise control and everything else is as accurate as before? The tires won't be huge as the truck will be stock height ( not lifted ). I just want to put the biggest tires on that can fit without any suspension upgrades, lifts, or levels and still have the speedo and all as accurate as before

Should I use a battery tender on my daily driver?

I drive a 2000 ford f350 with a powerstroke and i drive it daily to school ect and whenever i'm not driving it i plug the battery tender in overnight. Will this prolong the batteries or is it unnecessary

Ford F350 6.4 white smoke, loss of coolant and stumbling?

My fiance has a 2008 Ford f350 6.4 with about 120k miles on it. Every trip, even on a 5 mile short trip, it shows "cleaning exhaust filter" on the dash. Had it cleaned by a mechanic while getting alternator changed a couple months ago. Now out of nowhere, the truck upon starting up starts spewing out heavy white smoke. It smells like regular exhaust, not sweet like coolant. However, the coolant is getting sucked up every few days or so, and sometimes the truck makes a high revving noise and starts to overheat. Adding coolant and/or water helps temporarily. Could this be a bad EGR valve? Maybe deleting the dpf regen cycle stuff would help? I'm hoping it's not a cracked head or anything. The oil has not been changed for a while and I know it's due for a change.

Bought a truck privately, but owner is acting weird?

I made a deal with a owner of a Ford F250, we agreed on a price. He said he might be able to meet today at the notary with him with the money and the truck. I talked to him, and he said that maybe Wed would work possibly, but he didn't respond after possibly. Now I called himx he didn't pick up and I texted him, so for nothing. This is sounding pretty shady. Anyone else have any details or similar stories with a possible out come?