just bought a 6.2
 

i just picked up a 91 GMC K2500 4X4 with the banks kit and 80,000 miles on it. it has been sitting for 7 years with a full tank of fuel it started right up and runs fine i was wanting to know if there is something i should run through the tank. At this point i have changed the anti-freeze and the oil is there anything else i should do to this truck to get it ready to be a daily driver again. :c:

https://www.dieselbombers.com/member...ged-fluids.jpg

i would drain the tank of fuel i can't believe it started with 7 yr old fuel