Took the 6.4 on a road trip

[Alexpaul09]

Took my 6.4 from northern Indiana to south eastern Ohio this weekend. Mix of two lane and interstate driving. I did the math and hand calculations were within .2 of the evic! I was very happy with it

 

[olyelr]

OH C'MON!!!!!!!!!!!


Thats impressive.

 

[Hd74ica]

Speed and wind are the two factor that influence good MPG well also load. What was your average speed?

 

[Bldrinker]

70 mph tail wind and truck in neutral.

 

[Hd74ica]

70 mph tail wind and truck in neutral.

Now that works.

 

[SouthTexan]

Not bad for 60 mph average speed.

 

[reek]

I've had similar numbers but only if I kept the MPH below 60

 

[GsRAM]

On my way home from my mom's this past weekend I had to stop for fuel and reset the evic. When I got to a fuel station close to home it said my average was 17.3 mpg. That was running 73 in a 65 and 64 in a 55 with me and my son in the truck and a few hand tools in the bed and some power tools in the cab.....not too bad for a 7k lb brick with a 392ci V8!

 

[River19]

The truck is capable of 17s in certain cases. I normally sit solidly in the 11-13mpg range with 35s and 3.73s. Towing, I see anywhere from 9-11.5mpg.

On a road trip from MA to NC, all around Asheville/Brevard for a week and then back with 4 people and 4 bikes off the back with gear under the cap we got 17.Xmpg for 3400 miles of the trip.......blew us away actually. We were not babying it either.....65-75mph

It can do it, but it is like the sun and moon need to align and you have to sacrifice something to the Gods.......

 

[Alexpaul09]

5-10 mph light variable wind, average speed 65mph. Keep it under 75 it does good. For the last 40 miles I had the cruise set on 84mph and it was starting to drink the fuel. I have 3:73 gears, crew cab short bed with loaded tool box and had a dog box in the back hauling a dog to get bred. I’m sure it was a little over 7,000lbs rolling

 

[SouthTexan]

According to the math, the top trip had an average speed of 57.6 mph and the bottom was 59.4 mph.

 

[Hd74ica]

According to the math, the top trip had an average speed of 57.6 mph and the bottom was 59.4 mph.

Keeping it under 60mph and these heavy truck do fairly well.

 

[SouthTexan]

Keeping it under 60mph and these heavy truck do fairly well.

Yeah, I can easily get low 20's (EVIC) maintaining 60 mph. My problem is that I like going 75-80 mph. I got a deleted diesel commuter car that gets 45 mpg and I only drive my truck on weekends so I tend to care less about mpgs when I do drive it.

 

[lpfm1990]

I musta have had a unicorn 6.4 when I had my 2015 3500 with 3.73’s, I was able to get 20.2 mpg running the interstate (this was before my motor decided to start letting loose, hence having a 6.7 Cummins now) and mostly averaged 17-18 with mixed country road and city driving with 10 minute idle times leaving work on remote start during the spring thru fall... forget winter. That was painful


My dad had bought a 2018 3500 6.4 with 3.73’s, he took it back to the dealer and told them to shove the truck after a week and a half, he was barely getting 13-14 running country roads and he has a very light foot, and had a tonneau cover on his


Sent from my iPhone using Tapatalk

 

[boxofrokx]

I have a tonneau in my power wagon. I often drive a 200 mile round trip on 60-65 mph roads. The best I get is an indicated 15, 13 hand calc. Factory tire size

 

[terb]

So did they give him a cash refund??

 

[GsRAM]

This is what I was thinking....after a week and a half I'd be surprised they'd take it back.

My truck on my daily commute, back roads, stop and go is in the 10-12 range typically but it's a 7k lb truck with a 392 v8 and over 400 hp. I dont expect miracles, it's an HD truck

 

[River19]

I'm still wondering why people expect more than low to mid teens from these rigs. For the life of me I really can't. There hasn't been a heavy duty/super duty rig with a gasser that was ever known for getting anything but craptastic fuel economy. Decades of established experience should set expectations of 10-15mpg at best in mixed driving. Be very happy when we get 15-17mpg. IF someone wants more consistent 15-20mpg, get a diesel and all that comes with them.

These rigs have the aerodynamics of a dumpster, 100lbs of wheel and tire, and we love to add more rubber and weight in the form of larger tires, which exacerbates the aerodynamic challenges by adding more height along with the heavier rolling mass of more rubber. Even stock these things off highway are 11-13mpg rigs, highway 14-18mpg with most common efforts in the 15-16.5mpg range.

The new 2019 is slightly better with the new 8sp but again, dumpster, weight and a powerful gasser.

But what do I know, just been driving this thing for 5 years.....lol

 

[JoshR104]

I'm still wondering why people expect more than low to mid teens from these rigs. For the life of me I really can't. There hasn't been a heavy duty/super duty rig with a gasser that was ever known for getting anything but craptastic fuel economy. Decades of established experience should set expectations of 10-15mpg at best in mixed driving. Be very happy when we get 15-17mpg. IF someone wants more consistent 15-20mpg, get a diesel and all that comes with them.

These rigs have the aerodynamics of a dumpster, 100lbs of wheel and tire, and we love to add more rubber and weight in the form of larger tires, which exacerbates the aerodynamic challenges by adding more height along with the heavier rolling mass of more rubber. Even stock these things off highway are 11-13mpg rigs, highway 14-18mpg with most common efforts in the 15-16.5mpg range.

The new 2019 is slightly better with the new 8sp but again, dumpster, weight and a powerful gasser.

But what do I know, just been driving this thing for 5 years.....lol

Yea I dont get it either... Your buying a 7500 pound vehicle capable of pulling 15k pounds and its a gas motor.. I get 14 on the highway lifted and 2" bigger tires than stock and Im thrilled lol.

I remember my grandfather telling me about his ford v10 van getting 5mpg towing their not very large travel trailer down to florida and back.

Even my old superduty with the 6.7 only got 18 or 19 highway stock engine with similar setup. Diesel also costed 50 cents more a gallon and a 7k upfront cost plus all the other junk like additives and fuel filters. Im happy with 14 and mid grade gas.

 

[sandawilliams]

I'm still wondering why people expect more than low to mid teens from these rigs. For the life of me I really can't. There hasn't been a heavy duty/super duty rig with a gasser that was ever known for getting anything but craptastic fuel economy. Decades of established experience should set expectations of 10-15mpg at best in mixed driving. Be very happy when we get 15-17mpg. IF someone wants more consistent 15-20mpg, get a diesel and all that comes with them.

These rigs have the aerodynamics of a dumpster, 100lbs of wheel and tire, and we love to add more rubber and weight in the form of larger tires, which exacerbates the aerodynamic challenges by adding more height along with the heavier rolling mass of more rubber. Even stock these things off highway are 11-13mpg rigs, highway 14-18mpg with most common efforts in the 15-16.5mpg range.

The new 2019 is slightly better with the new 8sp but again, dumpster, weight and a powerful gasser.

But what do I know, just been driving this thing for 5 years.....lol

And anyone (which there are many) that depend on their evic to give accurate mpg's will **** if they ever hand calculate.