An interesting equation...

[Truckman]

One of the YouTube channels which I regularly watch is the Adept Ape channel...How he reached his choice of usernames is a mystery to me, but he seems to be a very intelligent as well as thorough and inquisitive Caterpillar diesel mechanic...Today's video concerns trying to gain better fuel mileage with diesel tunes...The specific vehicle in concern is a Peterbilt with C15 Cat @ 475HP pulling 80K pounds consistently...The driver complains of getting an average of 3.8 MPG...The equation he introduces is MPG per 1K pounds, calculated as gross weight X mileage ÷ 1000 = fuel mileage per 1K pounds...In this case: 80,000 lbs X 3.8 MPG ÷ 1,000 = 304 MPG(1K#)...Extending the math to Honda hybrids and motorcycles the Pete is far more efficient...Using the math on my mighty Dodge/Cummins I get 7500 X 12 = 90(1K#)...12 MPG is about average city/hwy for me with my 4.10 gears...That makes me feel only slightly better having dropped $350 at the pump last week at my quarterly fillup...Here's the video......Ben

[UTAH]

Add me to the Adept Ape following.

Hunter

[Truckman]

Add me to the Adept Ape following.

Hunter

The dude knows his stuff......Ben

[Flaco]

I know several guys and gals that drive truck. years ago when diesel started to cost more than gas many of the companies they work for de-tuned the engines to save fuel. the result was they would have to run a lower gear at a higher rpm to pull the same loads at the same speed and that meant worse mpg. before the de-tune, they could run a higher gear with lower rpm's = better mpg's.