RayUSMC
Jun 27, 2014Explorer
Gas or diesel?
Can we discuss pros & cons re gas or diesel? We're still looking at Bs. Some are gas, some diesel. We don't like the higher $/gal of diesel because it would offset any real savings from the higher mpg...
booster wrote:
Here is a chart that shows the energy in the various fuels Diesel has a 13% advantage in energy per gallon. As the technology of direct injection gas gets better, and that the diesels now have to start meeting emissions, I think you will see the thermal efficiency of the gas/diesel question wind up very close together and the mileage difference very close to that 13%. The 25% difference in mileage number has been around a long time, before the recent changes.
Also remember that to be accurate in % better calcs, you have to be using similar power engines. Comparing an I5 Sprinter to a 6.0 Chevy or 6.8 Ford gasser is not a valid comparison as the gassers have much higher power. Plus the I5 Sprinters were generally hauling about 1000# less weight IIRC.
Not saying either is better, just saying be accurate in your comparisons.