Reviving an IDI
My friend just picked up an early 90s (91 I think) F250 7.3l IDI. It hasn't been started in 5 years. Ran perfectly when it was parked. Its from a family friend so we trust what he is telling us. He has a bunch of OBS Ford trucks and just wants to get rid of them.
Anyway, we are looking for input on what should be done to get this thing started and running good.
Obviously, he picked up new batteries. Tried to start it yesterday but the starter was shot. Pulled it and Auto Zone said it was rusted or something. Installing new starter today and going to try again.
First question is whether the diesel in the tanks is still good? Both tanks are reading full. Do fuel gauges ever fail full? This could be a good thing or a bad thing if he has 60 gallons of bad diesel.
Next, is the oil still good? Does oil actually go bad or is that just a gimmick that the oil companies pitch to get you to change your oil more often.... He only needs to drive it five miles back to his house. Then he will change all the fluids: oil, radiator, tranny, diffs, etc. Should he absolutely change the oil before starting it?
Any help would be much appreciated