real world mileage, diesel vs gas

holstein13 wrote:

chadk66 wrote:
Achieving better mileage comes from a combination of things. Altered injection timing is an important part of it. Also changing the amount of fuel at appropriate times to achieve maximum power output at the correct time. It's rather mind boggling actually

What about emissions and longevity? I'm assuming the changes to timing could have a negative effect on emissions and / or longevity. Otherwise, wouldn't every manufacturer do it?

emissions aren't an issue in ND. If u choose to abuse the power you can tear stuff up. If u mind your business and keep your foot out of it your fine. You aren't gonna do that with motorhome. But yes u can tear a truck up if your stupid lol