I started my Silverado to check trailer lights and signals. Got distracted. Went in and laid down. I noticed an exhaust smell, but i was parked next to a semi, & dismissed it as from him. I woke to my rv shaking & jumped up and ran out, realizing 6 hours later it was still running!! Next morning I walked for 3 gallons of gas. It will not start. Tried the prime thing by turning the key on & off 3 times. Waited an hour tried again, and again. Nothing. I am moving an Rv 100 miles and the back end is riding low. Do i just need more gas? This truck is NEVER below.a quarter tank. I guess Ill staft walking now, in case my fuel intake from the tank is missing that 3 gallons. But if not that? Then whats my next move? This was an overnight spot and Ive recieved a warning to move already! We wont goninto i lost my phone, wore my shirt insideout AND BACKWARDS all the way there & back for gas! & lost a $20! All b4 8am today!