I have luckily never ran out of gas, and the closest I have gotten was when my current 08' was brand new. I was getting ready to get married and I believe that it was the weekend before. I had so much to do (like dropping off the liquor at the hall), pick up odd's and end's, etc., etc. This was 4 years ago when gas prices were at there highest level ever. Anyway, I was driving with my Dad and he is very picky (and never drives below 1/2 or 1/4), and he commented, "Do you have a Low Gas Light". I had no idea. But, I made it in semi-rural/city traffic, stop-and-go to the nearest gas station after traveling nearly below empty and 10 miles later. I think my truck has a 19.5 gallon tank, and I put 17.8 gallons in. I was starting to experience hesitation like the vehicle was going to stall, and I shouldn't have pushed it to the limit. However, it was one time and one time only.