Why don't trucks go 55 for fuel efficiency?

True. I remember getting in my pickup after being in the truck for several weeks. Felt like a sports car !

 

Compound turbos, water injection, propane, and then maybe you will, between the 100,000 mile rebuilds. I have 515hp in my 13 liter, I can tell you it doesn't have the torque of the 15 liter with 500 HP. That may be why the now have a dd16

 

The best emissions for the old 2014 I drove was 69 to 71. I was getting 6.4 to 6.8 except the mountains.

 

I agree. In fact, I can only sustain it going down hill.

 

Lol

 

[QUOTE="scoobertdoo, post: 11363986, member: 30956] I have 515hp in my 13 liter, I can tell you it doesn't have the torque of the 15 liter with 500 HP. That may be why the now have a dd16[/QUOTE]
Well no ####. The 13 doesn't have the rotational mass as the 15

 

I do 75% of the time in the Buckeye. Wanna see if my ride goes faster than 55 big guy?

 

Ok @snowwy . Let's say you are in your personal vehicle. It averages 20 miles per gallon. You are 20 miles from the nearest gas station and you have exactly 1 gallon of gas in the tank. Are you going to drive to town as fast as you can with your foot to the floor? Or are you gonna drive it nice like you are taking granny to church on Sunday? Cause only one of those will get you to town

 

Sometimes I have to be loaded pretty good to even get 75 going downhill lol

 

So this is where I get confused.....how is it less miles by running slower? If the run is 500 miles, that is a day of driving regardless of how you slice it. My truck is governed at 65 and I can run 3000 miles with regularity. You say 1200 miles is 6k, ok.....that's 2 days not counting deadhead, and if you're drop is appt only, then what's the purpose of hurry up and wait? Edu-ma-cate me.