I'm looking to get a 2009 F250 with 139,000 miles on it is it a good buy?

I'm 21 and it will be my first vehicle and i don't know too much about diesels. It is a 2009 Ford Super Duty F-250 Lariat Power Stroke Diesel 4X4 with 139,000 miles for $30,000. What would be the average MPG, what is the break-in mileage, what is the average mileage and what is high mileage? A lot of questions i know but like i said i don't know anything about diesels and i just want to make sure it is a good buy.

That is huge mileage. The usual mileage per year is about 12,000 miles per year. A working vehicle might put on more, but would then be worth less money as a result.

So, an 09 vehicle with the usual mileage should have around 72,000 or so miles. Your candidate vehicle is close to double that. Not a good choice, as it's likely to need a lot of fixing sooner rather than later.

I wouldn't pay $30k for anything with 139k on it.

That seems like a lot of money for a used truck with 139,000 miles on it. Unless you are planning on doing a lot of towing you might want to consider a gas engine. Diesels get better fuel mileage than gas vehicles but Diesel fuel is almost a dollar a gallon more than regular gas.

Wow. $30K for a 2009 vehicle with 139K miles. Seems a bit high to me. Does this thing have gold plated rims or what?