Go Back   EcoModder Forum > EcoModding > General Efficiency Discussion
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 11-09-2020, 12:47 PM   #11 (permalink)
Master EcoModder
 
Join Date: Nov 2012
Location: San Diego, California
Posts: 982
Thanks: 271
Thanked 385 Times in 259 Posts
I have a Freightliner 2500, Sprinter.

It is the smallest one they made at 118 inch wheel base and a short roof. At 62 mph, it can reach 30 mpg with it's 2.7 L diesel and 5 speed automatic transmission. Fuel efficiency plummets as you go faster. Vans are shaped like boxes.

My in laws have a Honda Odyssey with an engine that shuts off cylinders at low load. It can exceed 30 mpg, but not at 65. It seems to turn on all cylinders at about 60 on flat terrain.

  Reply With Quote
The Following User Says Thank You to RustyLugNut For This Useful Post:
freebeard (11-09-2020)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 11-09-2020, 05:30 PM   #12 (permalink)
Master EcoModder
 
Join Date: Feb 2014
Location: Missoula, MT
Posts: 2,653

Dark Egg - '12 VW Touraeg
Thanks: 301
Thanked 1,177 Times in 807 Posts
The diesel vans would be the Sprinter either Mercedes or Dodge, the Transit has a diesel option, and the Promasters have a diesel option. There is also a full size GM van with the new 2.7 Duramax they put in the Colorado. All those Van's will be pricey.

As far as the 30 mpg Caravan, we have a 2011 Town and country we took on a vacation a few years back, I kept it to 55 mpg and ran a 250 mile each way up and back loop and got just a tad under 30 mpg hand calculated. That was in the mountains of Western Montana. We have LRR tires at 50 psi and about 85k miles on it, used the "eco" mode and just took it easy.
  Reply With Quote
Old 11-09-2020, 06:24 PM   #13 (permalink)
Rat Racer
 
Fat Charlie's Avatar
 
Join Date: May 2011
Location: Route 16
Posts: 4,150

Al the Third, year four - '13 Honda Fit Base
Team Honda
90 day: 42.9 mpg (US)
Thanks: 1,784
Thanked 1,922 Times in 1,246 Posts
I think picking a target mpg is working backawards.

Start with "I want to do x,y and z". Then see how efficiently you can do that.
__________________

Quote:
Originally Posted by sheepdog44 View Post
Transmission type Efficiency
Manual neutral engine off.100% @MPG <----- Fun Fact.
Manual 1:1 gear ratio .......98%
CVT belt ............................88%
Automatic .........................86%

  Reply With Quote
The Following 2 Users Say Thank You to Fat Charlie For This Useful Post:
freebeard (11-09-2020), Hersbird (11-10-2020)
Old 11-10-2020, 01:35 PM   #14 (permalink)
Master EcoModder
 
Join Date: Feb 2014
Location: Missoula, MT
Posts: 2,653

Dark Egg - '12 VW Touraeg
Thanks: 301
Thanked 1,177 Times in 807 Posts
Quote:
Originally Posted by Fat Charlie View Post
I think picking a target mpg is working backawards.

Start with "I want to do x,y and z". Then see how efficiently you can do that.
And as the original post seemed to talk of eco as in economy not ecology, spending thousands more to save what will amount to hundreds of dollars wouldn't be economical.
Van A driven 10,000 miles a year getting 30 mpg saves $360 a year at today's prices vs van B getting 20 mpg. You will save way more by getting a van with a kitchen and actually using it out on the road vs stopping at restaurants.
  Reply With Quote
The Following 2 Users Say Thank You to Hersbird For This Useful Post:
Fat Charlie (11-10-2020), JSH (11-25-2020)
Old 11-10-2020, 01:47 PM   #15 (permalink)
Master EcoModder
 
Join Date: Feb 2014
Location: Missoula, MT
Posts: 2,653

Dark Egg - '12 VW Touraeg
Thanks: 301
Thanked 1,177 Times in 807 Posts
I do totally get wanting to get better mpg. We do this game all the time with our almost annual pilgrimage to Yellowstone park. Luckily we live pretty close, 300 miles or so each way. When we make a quick 3 night trip the math on bringing the camper starts to be tight. We used to be lucky to get 8 mpg and gas a over $3/gal so it cost $260 in gas and $90 for 3 nights at the campground. That is pushing the cost of 3 nights hotel in West Yellowstone and no stress towing. Now I can get 13 mpg, diesel is less, and we may downsize to a popup where we could get over 20 mpg. So camping is a no brainer, especially considering the better location than where the hotels are.

Someday when it's just my wife and I and I'm retired we will get a class B diesel van and go all over the US and Canada and Alaska.
  Reply With Quote
Old 11-10-2020, 02:27 PM   #16 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,692
Thanks: 7,774
Thanked 8,584 Times in 7,068 Posts
Boat Tail Cargo Box.


....with wheelie bars.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
"We're deeply sorry." -- Pfizer
  Reply With Quote
Old 11-10-2020, 06:44 PM   #17 (permalink)
Rat Racer
 
Fat Charlie's Avatar
 
Join Date: May 2011
Location: Route 16
Posts: 4,150

Al the Third, year four - '13 Honda Fit Base
Team Honda
90 day: 42.9 mpg (US)
Thanks: 1,784
Thanked 1,922 Times in 1,246 Posts
I'm a big fan of mpg. But a camper of any sort is a lot of weight and space no matter which way you cut it, and space is what you're looking for. The 2011 and newer Dodge platform is a good one even without mods- get a curtain, block the side and rear windows, throw in a cot, cassette toilet and a chuck box, and you're in business.
__________________

Quote:
Originally Posted by sheepdog44 View Post
Transmission type Efficiency
Manual neutral engine off.100% @MPG <----- Fun Fact.
Manual 1:1 gear ratio .......98%
CVT belt ............................88%
Automatic .........................86%

  Reply With Quote
Old 11-11-2020, 12:12 AM   #18 (permalink)
EcoModding Lurker
 
Join Date: Aug 2008
Location: Long Beach, CA
Posts: 36
Thanks: 1
Thanked 5 Times in 5 Posts
Another option I'm leaving myself is to get a city van like the Ford Transit Connect or Ram ProMaster City, or Nissan NV200. Basically it's the smallest cargo vans on the road (US). These also are rated at 28-29 mpg on the highway.

Seems like a mini van or city van that is rated at ~28 mpg can do 30 mpg by pumping the tires up to rated max on the tires. If not 30, pretty dang close!

Oh yeah, I ran across this van that I just had to share;
69 Dodge Panel Van
  Reply With Quote
Old 11-11-2020, 01:14 AM   #19 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,692
Thanks: 7,774
Thanked 8,584 Times in 7,068 Posts
Did you buy that yet?

The slant six has the intake and exhaust on the uphill side, on the downhill side IIRC an oil filter. That would be a good location for a GM E-Assist retrofit.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
"We're deeply sorry." -- Pfizer
  Reply With Quote
Old 11-11-2020, 05:04 PM   #20 (permalink)
Rat Racer
 
Fat Charlie's Avatar
 
Join Date: May 2011
Location: Route 16
Posts: 4,150

Al the Third, year four - '13 Honda Fit Base
Team Honda
90 day: 42.9 mpg (US)
Thanks: 1,784
Thanked 1,922 Times in 1,246 Posts
[QUOTE=User1;636044
Seems like a mini van or city van that is rated at ~28 mpg can do 30 mpg by pumping the tires up to rated max on the tires. If not 30, pretty dang close!
[/QUOTE]

Actually, every vehicle ever can outperform its EPA rating by adjusting the nut behind the wheel. Modding the vehicle helps, but the driver is where the real numbers happen.

__________________

Quote:
Originally Posted by sheepdog44 View Post
Transmission type Efficiency
Manual neutral engine off.100% @MPG <----- Fun Fact.
Manual 1:1 gear ratio .......98%
CVT belt ............................88%
Automatic .........................86%

  Reply With Quote
Reply  Post New Thread






Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com