bought this truck from a family member 03 7.3, it's been park not garaged sense 09 when my cousin the original owner died. Was strong running when park. I started it yester after changing solenoid, hot battery, and I put some fuel stabilizer and 5 gallons of diesel in it. But I cut it off maybe two minutes after because I didn't want to break anything before I found out what's a few tips of things to do before I put her onda road because this is my first go round buying a diesel truck

 

Don't think you'd damage anything by driving it.

I'd suggest replacing your engine oil, transmission fluid, and coolant at some point. Take a good look at the tires and make sure they're still in decent shape, after a few years they tend to crack and lose their integrity.

 

A couple questions.
Did you change any fluids and filters yet ?
If not change oil/filter and fuel.
If you only have 5 gallons I would drop the fuel tank and clean it out. Check the
fuel pump foot while there.

Did it smoke at all when it was running ?

Did you see any obvious leaks.

This is just for starters.

ZooDad

How many miles does it have?

And most of all........
Enjoy it, you have the last year a 7.3 psd was put in a Super Duty.