seeking guidance from someone who knows
 

Im looking to buy a 2006 6.0L powerstroke F350 body wise the truck is fantastic. but i dont know enough about them to judge. its got 191,000 miles and he said he just got a new egr/oil cooler and replaced the #5 injector. he only wants $12,500 so it feels like a great deal. is this something i should do, or does anyone think i would start seeing a lot of problems soon. any advice would help.

Take it somewhere and have it looked at before purchasing. What mods does the truck have? Sometimes you get the guys running programmers without studding them and try to pawn it of on someone after they notice they are adding a gallon of coolant a month. (Headgasket failure)

its posted on craigslist and the only kind of mod he lists is just a leveling kit nothing about the engine but im waiting on him to email or call me and ill go look at in person. here is the link if you wanna take a look.

2003 F350 Powerstroke

Looks good from the outside but i would still have a competent mechanic give it a good run through before you take her home. Always a good rule of thumb when buying used vehicles.