Is there a scientific chart showing how much fuel you save by going slower?

I have over a half a million on my drives and they've been capped once. The biggest factor I have seen in tire life is maintaining consistent air pressure.

 

Half a million?! I feel bad. I had to ditch my Yokohamas after 300K I used centramatrix and all. Why do I get the worst fuel mileage and the worst tire usage in the whole world?

 

Eh. I am just a fisherman chasing cod on the sea. The boat is just a means to an end.

 

I dunno what to tell you. Mine were Yoko's new. Goodyear retreads.

 

Weight.

Weight plays a huge role- I imagine Rollin Coal most likely hauls light and Heavy- Which Plays a HUGE role in tire life also..But Keep your pressures up helps too

Me, I Haul Heavy Every Trip- once in a blue moon I'll get 1 in the 30k range..Other than that its 42-48k every week- I Get 3 years outta my drives (Heavy Lug Chinese-32/32nds)

 

It's not just as simple as get another load. If it is, then yeah drive a little faster I suppose but in my opinion, Yes speed is a factor.---- But it's more like momentum. Driving the hills. Using the momentum to your advantage. I may cruise @ 58-62 but when I catch a free break from a hill, I cruise up to 65 or whatever sometimes. And also, I'm not trying to keep my speed going up hills. If your eastbound and there's a westerly wind, then going 65 won't be much different than 58,, it's all about how much energy you'll need to keep that constant speed. So typically yeah, it's gonna take more energy to keep a loaded truck and trailer going 65+

nobody's mentioned driving for low boost pressure. Keep that boost pressure under 20, or even better under 10. ----Think about that fuel that gets burned going from 0 to 60, most of that fuel is burnt early on, low mph.

But being easy on the pedal will make lower boost pressure

But to answer the orginal post question: do what you want. People who go fast will always try to justify why they go fast. And people who go "slow" will always try and justify why they don't hammer down.

Figure out which one makes more sense to you and roll with it

 

There you go. I roll the way I do and don't really care or wonder what difference it makes for guys who roll 60 mph all day. Good for them. My way, the speed limit or whatever I deemed sensible on the open highway, has worked well for me in 8 years. I'm sure that for however long I continue to operate and the government isn't regulating my top speed, that whatever top speed I am choosing to run... ...will work out just fine.

 

nobody has mentioned the more miles per day equals more miles per year.
72 vs 62=10 miles/hr. 10hrs/day =100miles/day.
500/week@50wks/year=25000miles/year
that's a lot of missed miles!!
and I even factored it on the low side. 10hrs/day.

 

Are you saying more miles equal more money

 

for those getting mileage pay,yes.