8+ MPG Truck

I'll show you mine if you show me yours lol

 

9.98mpg @ $4/gal is just a hair over 40cpm, rather impressive

my costs at 6.5mpg is about 62cpm

congrats

 

Last one I promise

 

Great Numbers scottie

 

8.2 mpgs. avg. across the board. 1999 Cat C 15, 6nz, 2000 KW T2000/Kentucky drop frame w/belly boxes. Completely stock 'cept fuel pressure increased 10 lbs, timing retarded 2.5 degrees (?) Original brakes and clutch...it's ALL how YA drive Drivers.

 

I'm not a diesel guy, but how do you re-tard(I know its one word but TTR won't let you spell it as one word) the timing on a diesel engine considering they don't have spark plugs?
Or are you talking about retarding the cam?

 

On today's engine it's all in the ECM , as far as timing . And when the injector "fires" and how much. Or more in line as how long the injector is open. Hope that helps. Have built a few , but was not aiming for the numbers that others far better are able of !

 

Thank you sdaniel for explaining. I'm far from a mechanic and probably used the wrong word. AFAIR the tech said on a C15 the cam does not wholly control the electronic injectors and the timing on the injectors was "slowed"

 

Yeah never imagined changing injector timing...Like I said, I'm clueless when it comes to diesel stuff. It's hard to wrap my head around when you take what you know about a gas engine, and realize only thing that applies from that is rotating assembly...and most everything else is totally different.

 

At 4.00 a gallon, if your mpg is 10 mpg, then you're paying 0.40 per mile. At 5 mpg, you're paying 0.80 per mile. If your mileage + fsc is $1.38 (which is normal for a company that pays mileage rather than freight), then you're getting 0.98/mile net at 10 mpg, and 0.58/mile net at 5 mpg.

The question is how many additional miles are you being able to fit in? 1,000 miles at 10 mpg is worth 980.00. You'd need (pulling out my calculator...) 1689 miles at 5 mpg to make the same profit.


If the differences in mileage are less steep than that, and if your carrier has the miles for you, then you might actually do better for yourself running at 70 mph rather than 60 mph.