Forum Discussion
BackOfThePack
Feb 10, 2022Explorer
blt2ski wrote:
Even class 8 OTR truck companies worry about mpg. A tenth per gallon can be around 100 gals of fuel per vehicle per year. If you 100 rigs going 100k Mike's per year, that's a 30-40,000 cost savings per year for many fleets this size. Eve a dime per gallon if fuel can add up
May not seen like a lit if money in some comparison s, over time it can be
Marty
It pretty much drives the industry. One doesn’t master that in his segment of the business, he’s sunk.
Todays diesel pickups aren’t at all tuned for MPG. And plenty of owners screw them up farther.
I’ve seen claims of 14-mpg highway in current 1-ton diesels.
So let’s take my Kenworth which (bobtail, no trailer), is:
— Twice as heavy.
— Twice as tall.
— Twice as many tires.
— Twice the engine size
And at a slightly slower highway speed (and no adverse winds) I’ve seen 14-mpg on the readout for many, many miles.
A dozen years ago this wouldn’t be so. It would also be down on power (not just size).
15-L Cummins of today is much more efficient than those of a dozen years ago.
Which we cannot say about Detroit diesel pickups. They’re tuned for power (which you mainly can’t use), and there’s no attempt at fuel economy in any serious sense.
Was reading a Cummins brochure at a dealership yesterday on the 6.7L. Can be had in a wide range of power ratings.
Think the 2021 Ram might be just a tad more fuel efficient if it was tuned for about 300HP/600TQ? It won’t do less work . . I was grossing 32k plus for hotshot oilfield in ‘05-‘08 CTD back then.
My 555TQ 5.9L returns no less than 24-MPG highway solo at the same speed as I was operating the KW. Pickup is 2,100-lbs above factory published curb weight. 48,000-miles of records over that same region.
The KW averages into the nines with lighter loads (loads to 30k). Would have been sevens back in ‘08. At $4/gl it’s past $8k savings per truck, per year. (Goes straight to profit).
Why are these $100k pickups so poor?
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