Diesel Fuel Mileage
Looking at new trucks (3/4 ton) and considering a deisel. I pull a 6000 pound TT. I am wondering what kind of mileage comparable rigs are getting. I am more interested in the extended range rather tha...
Forum Discussion
What the vehicle COULD do is what’s missing in these threads.
1). Vehicle spec.
2). Climate according to USGS
3). Topography
4). TARE weight (driver plus max fuel & gear kept permanently aboard)
5). A 200-mile loop on cruise control at 59-mph, back to same satin and same pump. Top to auto shutoff.
6). Same; but truck loaded as if for camping.
7). Same; but hitched to trailer (full propane & fresh water).
It’s the percentage change between these that matter.
Gas versus diesel = 33%
Solo (loaded less TW) versus towing = 40%
The factors that can’t be changed make comparisons to others almost meaningless. OTOH, some factors can be changed to minimize fuel burn.
The bad driving I see on the Interstate (and lousy hitch rigging is default) surely accounts for some numbers generated. But who goes to the trouble to learn what’s possible is exceedingly rare.
That gap ISN’T fully covered by fuel type or rig aero (despite claims to contrary).
You want the number that says something, it’s AVERAGE MPH.
The worse the discrepancy between AVERAGE and SET SPEED, the worse will be the mpg (for given conditions).
And unless one lives in the mountains, who gives a flip about vacation mpg therein? How did it change the annual fuel bill? Especially as against the upfront cost of a more expensive drivetrain.
1). Vehicle spec.
2). Climate according to USGS
3). Topography
4). TARE weight (driver plus max fuel & gear kept permanently aboard)
5). A 200-mile loop on cruise control at 59-mph, back to same satin and same pump. Top to auto shutoff.
6). Same; but truck loaded as if for camping.
7). Same; but hitched to trailer (full propane & fresh water).
It’s the percentage change between these that matter.
Gas versus diesel = 33%
Solo (loaded less TW) versus towing = 40%
The factors that can’t be changed make comparisons to others almost meaningless. OTOH, some factors can be changed to minimize fuel burn.
The bad driving I see on the Interstate (and lousy hitch rigging is default) surely accounts for some numbers generated. But who goes to the trouble to learn what’s possible is exceedingly rare.
That gap ISN’T fully covered by fuel type or rig aero (despite claims to contrary).
You want the number that says something, it’s AVERAGE MPH.
The worse the discrepancy between AVERAGE and SET SPEED, the worse will be the mpg (for given conditions).
And unless one lives in the mountains, who gives a flip about vacation mpg therein? How did it change the annual fuel bill? Especially as against the upfront cost of a more expensive drivetrain.
