Do they take reg. Gas or deisel ford f250?

Ford truck

They make them in both versions. The Power Stroke is a diesel.

Depends on the model you bought. Some F250s are diesel, some are regular gasoline. One way to find out is to look at your gas tank. Most cars have a sticker or other writing on the door to your gas tank that says "Unleaded Only" or "Diesel only."

It depends on what model you get. What year are you looking for? Talk to a dealer, but don't let them sway you to the truck that is better for them to sell.

You should not be driving.

Either one.

Look inside the gas door.

It should be pretty obvious. Gasoline and diesel engines have very distinctive sounds. Ford had both gasoline and diesel engines installed in F-250's for the longest time. The same for F-350s, 450s, 550s, etc.

Either, depending on which engine you bought it with.