I have owned many trucks in my life with all of the first ones being gassers. Started out with a Ford Ranger w/ V6 and then a Toyota Tacoma w/ V6 both were good trucks with good fuel mileage and the Toyota was very fast w/ the TRD supercharger and exhaust and some other mods. But what kinda haulin can you do with them, they were just toys. Then I bought an '02 4x4Dodge w/ the 5. 9L 360 (gas) and it was awful on mileage. Around town best was 12 mpg and towing a small boat back and forth to the lake all flat, I saw 8 mpg. Always wanted a Cummins so within 2 months of having it, I traded the gas for an '03 6 spd. H. O. w/ 3. 73 QC 4x4. Ever since then when I drive my truck it is a joy and I love fixing them up. I have now traded the '03 for my first brand new truck an '06 3500 48re dually and I absolutley love this truck. I don't tow all the time but I do tow a skid steer and a car trailer w/ some sort of vehicle on it from time to time. There is no way a gas motor would get the job done as good and as fast and reliable as a Cummins. I also just recently purchased a '96 12V and that opened up a whole new love for these trucks. Just my 2 cents worth anyhow.