Eco Diesel Mileage - Page 13 - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 - > 2014+ Jeep Grand Cherokee Ecodiesel 3.0

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #145  
Old 02-17-2015, 02:37 PM
fun2drive's Avatar
Member
My Jeep: 2014 3.0L WK2
 
Join Date: Mar 2013
Location: Florida Panhandle/ Ohio
Posts: 800
Thanks: 16
Thanked 94 Times in 73 Posts
Rep Power: 2339
fun2drive has a reputation beyond reputefun2drive has a reputation beyond reputefun2drive has a reputation beyond reputefun2drive has a reputation beyond reputefun2drive has a reputation beyond reputefun2drive has a reputation beyond repute
Re: Eco Diesel Mileage

Have just experienced low fuel mileage from Florida to Ohio. Low temps winter blend and head winds started me off at 18 mpg and once warm best I saw was 24.6. 15K miles so I know what is typical and for me that is 28. Took about 80 miles in the cold to get the fuel economy up to 23-25 range which I attribute to warming of the drive train. Tire pressure start in Florida at 38 now 33 so part of the issue. Love my ride and happy with the usual high mileage I get just not this trip with negative temps and winter blend low tire pressure...


Sent from my iPhone using JeepGarage

__________________
Overland Deep Cherry Red/ LT Biege Inter/ Diesel/ ATG
Reply With Quote
Sponsored Links
Advertisement
 
  #146  
Old 02-18-2015, 09:10 PM
Member
My Jeep: 2015 3.0L WK2
 
Join Date: Nov 2014
Location: Chicago
Posts: 122
Thanks: 24
Thanked 13 Times in 11 Posts
Rep Power: 915
thrawn86 is on a distinguished road
Re: Eco Diesel Mileage

Quote:
Originally Posted by Suns_PSD View Post
My wife is averaging 25.5 mpg going by the computer. That is 60-70% in town driving.
ugh, I just clocked 400 pure highway miles with cruise control at 25.1

Quote:
Originally Posted by fun2drive
Low temps winter blend and head winds started me off at 18 mpg and once warm best I saw was 24.6.
I'm starting to think its fuel more than temperature. I got ~29 in single digit temps on the highway last week, but 25.1 today for the same trip. Both were "up to 20%" biodiesel.
Reply With Quote
  #147  
Old 02-18-2015, 09:16 PM
akinney's Avatar
Member
My Jeep: 2015 3.0L WK2
 
Join Date: Jan 2015
Location: College Place, WA, USA
Posts: 261
Thanks: 79
Thanked 67 Times in 49 Posts
Rep Power: 16640
akinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond repute
Garage
Re: Eco Diesel Mileage

Quote:
Originally Posted by thrawn86 View Post
ugh, I just clocked 400 pure highway miles with cruise control at 25.1



I'm starting to think its fuel more than temperature. I got ~29 in single digit temps on the highway last week, but 25.1 today for the same trip. Both were "up to 20%" biodiesel.
Biodiesel has lower energy content and is going to clog your DPF quicker. When your DPF fills quicker, you have more regeneration cycles to clean the DPF and regeneration cycles use more fuel.
__________________
Deep Cherry Red 2015 JGC Ltd EcoDiesel with Beige Interior / ORA II / Lux II / 8.4AN
Mods: DEF injector guard | Mopar splash guards | Green Hornet fuel cap | Fumoto F-106 oil drain valve | aFe Pro Guard 7 engine air filter | Mopar molded running boards | Mopar roof rack cross bars | Mopar rear cargo net | Mopar rear cargo liner | Husky X-Act Contour floor liners | Mopar "Rugged Off-Road" Black & Machined 18x8 wheels
Reply With Quote
  #148  
Old 02-18-2015, 09:57 PM
Member
My Jeep: 2014 3.0L WK2
 
Join Date: Feb 2015
Location: Austin
Posts: 94
Thanks: 2
Thanked 11 Times in 10 Posts
Rep Power: 809
Suns_PSD is on a distinguished road
Re: Eco Diesel Mileage

Average speed of 23.7mph. (Lots of stop and go). 24.7mpg. That's over the previous 452 miles.



I think my additive and running tire pressure a bit higher helps.
Reply With Quote
  #149  
Old 02-18-2015, 10:54 PM
Member
My Jeep: 2015 3.0L WK2
 
Join Date: Nov 2014
Location: Chicago
Posts: 122
Thanks: 24
Thanked 13 Times in 11 Posts
Rep Power: 915
thrawn86 is on a distinguished road
Re: Eco Diesel Mileage

Quote:
Originally Posted by akinney View Post
Biodiesel has lower energy content and is going to clog your DPF quicker. When your DPF fills quicker, you have more regeneration cycles to clean the DPF and regeneration cycles use more fuel.
this makes me worry, I just hit 5000 (~50% def remaining) miles and I've never had a regen with roughly 40-50% city driving. every fillup save one or two have been biodiesel blends.

are there different (smaller?) phases of regen going on without giving the warning?
Reply With Quote
  #150  
Old 02-18-2015, 11:03 PM
Senior Member
 
Join Date: Sep 2013
Posts: 1,307
Thanks: 46
Thanked 164 Times in 132 Posts
Rep Power: 2871
Roadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond reputeRoadkill has a reputation beyond repute
Quote:
Originally Posted by thrawn86 View Post
this makes me worry, I just hit 5000 (~50% def remaining) miles and I've never had a regen with roughly 40-50% city driving.
No, you should be the opposite of worried. Normal regens are silent and the only way you can truly know they are happening is with OBDII monitoring of cat/dpf temps. You have probably had ~20 silent regens (aka "the normal kind") already.

When you see "regen now" messages that indicates the dpf is 80+% full and your driving patterns haven't been adequate to allow normal regens. So, really, it's the people who see regen messages ("the emergency kind") frequently who should be concerned.
Reply With Quote
  #151  
Old 02-19-2015, 02:06 AM
akinney's Avatar
Member
My Jeep: 2015 3.0L WK2
 
Join Date: Jan 2015
Location: College Place, WA, USA
Posts: 261
Thanks: 79
Thanked 67 Times in 49 Posts
Rep Power: 16640
akinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond reputeakinney has a reputation beyond repute
Garage
Re: Eco Diesel Mileage

Quote:
Originally Posted by thrawn86 View Post
this makes me worry, I just hit 5000 (~50% def remaining) miles and I've never had a regen with roughly 40-50% city driving. every fillup save one or two have been biodiesel blends.

are there different (smaller?) phases of regen going on without giving the warning?
If you're not getting messages, that means they're happening fine. Biodiesel makes the regens happen more frequently and regens use more fuel, but if it were going to cause problems, I would think you would have had them by now.

The owner's manual says biodiesel up to 20% is fine, but anything above 5% biodiesel requires you use the modified maintenance schedules. The maintenance minder won't have you change the oil soon enough if you're using greater than 5% biodiesel (according to the owner's manual - haven't seen oil analysis on 20% biodiesel drivers yet).
__________________
Deep Cherry Red 2015 JGC Ltd EcoDiesel with Beige Interior / ORA II / Lux II / 8.4AN
Mods: DEF injector guard | Mopar splash guards | Green Hornet fuel cap | Fumoto F-106 oil drain valve | aFe Pro Guard 7 engine air filter | Mopar molded running boards | Mopar roof rack cross bars | Mopar rear cargo net | Mopar rear cargo liner | Husky X-Act Contour floor liners | Mopar "Rugged Off-Road" Black & Machined 18x8 wheels
Reply With Quote
  #152  
Old 02-19-2015, 08:25 AM
jaje's Avatar
Member
 
Join Date: May 2014
Posts: 306
Thanks: 6
Thanked 52 Times in 38 Posts
Rep Power: 1287
jaje is on a distinguished road
Re: Eco Diesel Mileage

Biodiesel has a slightly higher gelling temp than dino diesel. If you have B20 then I'd add in some Howe's anti gel as it will reduce this problem. Noted you are in Chicago so you get some cold temps.

I've seen my instant MPG drop by 10 mpg which I then figured out it was doing a regen.
__________________
'14 XV Crosstrek
#74 Exomotive Exocet NASA ST3 / E0
'14 WK2 EcoDiesel (replaces '07 WK CRD)
Reply With Quote
  #153  
Old 02-19-2015, 08:38 AM
Member
My Jeep: 2014 3.0L WK2
 
Join Date: Feb 2014
Posts: 310
Thanks: 21
Thanked 44 Times in 36 Posts
Rep Power: 18866
Stbentoak has a reputation beyond reputeStbentoak has a reputation beyond reputeStbentoak has a reputation beyond reputeStbentoak has a reputation beyond reputeStbentoak has a reputation beyond reputeStbentoak has a reputation beyond reputeStbentoak has a reputation beyond reputeStbentoak has a reputation beyond reputeStbentoak has a reputation beyond reputeStbentoak has a reputation beyond reputeStbentoak has a reputation beyond repute
Re: Eco Diesel Mileage

Does a station absolutely have to post and advertise they are dispensing biodiesel? I prefer to avoid it if I know about it...
Would they switch between without telling?


Sent from my iPad using JeepGarage
__________________
2014 JGC Summit CRD with rear seat ent. Black and beautiful...
Reply With Quote
  #154  
Old 02-19-2015, 08:53 AM
1Zach1's Avatar
Premium Member
My Jeep: 2014 3.0L WK2
 
Join Date: Dec 2013
Location: NoVA
Posts: 117
Thanks: 6
Thanked 11 Times in 10 Posts
Rep Power: 1238
1Zach1 is on a distinguished road
Re: Eco Diesel Mileage

Quote:
Originally Posted by Stbentoak View Post
Does a station absolutely have to post and advertise they are dispensing biodiesel? I prefer to avoid it if I know about it...
Would they switch between without telling?


Sent from my iPad using JeepGarage
I can't speak to whatever state laws might be out there but

"
Quote:
Low-Level Blends

ASTM International develops specifications for a wide variety of products, including conventional diesel fuel (ASTM D975). This specification allows for biodiesel concentrations of up to 5% (B5) to be called diesel fuel, with no separate labeling required at the pump. Low-level biodiesel blends, such as B5 are ASTM approved for safe operation in any compression-ignition engine designed to be operated on petroleum diesel. This can include light-duty and heavy-duty diesel cars and trucks, tractors, boats, and electrical generators.
Alternative Fuels Data Center: Biodiesel Blends
__________________
Limited 4x4 MaxSteel.
Reply With Quote
  #155  
Old 02-19-2015, 10:06 AM
echo7tango's Avatar
Premium Member
My Jeep: 2016 3.0L WK2
 
Join Date: Dec 2012
Location: SF Giants Nation 2010 / 2012 / 2014!
Posts: 938
Thanks: 132
Thanked 187 Times in 134 Posts
Rep Power: 67982
echo7tango has a reputation beyond reputeecho7tango has a reputation beyond reputeecho7tango has a reputation beyond reputeecho7tango has a reputation beyond reputeecho7tango has a reputation beyond reputeecho7tango has a reputation beyond reputeecho7tango has a reputation beyond reputeecho7tango has a reputation beyond reputeecho7tango has a reputation beyond reputeecho7tango has a reputation beyond reputeecho7tango has a reputation beyond repute
Re: Eco Diesel Mileage

On a recent trip, flat highways, 60 degree temps and little wind, I got:

25 MPG at a steady-state 85 MPH
28 MPG at a steady-state 75 MPH
34 MPG at a steady-state 65 MPH
45 MPG at a steady-state 55 MPH

These MPG values were as shown on the EVIC's instantaneous MPG values when driving for a few miles. Elevation was near sea level, between 200 and 600 feet.
__________________

2016 JGC CRD 3.0L V-6 WK2, QL, QD-II, ORA-II, Wrangler Duratrac 275/55-20
Lemon Law buy-back of my 2014 JGC CRD: http://tinyurl.com/e7t-JGC-CRD-buyBackSummary
Not as lean, not as mean, still a Marine.
Reply With Quote
  #156  
Old 02-21-2015, 08:35 PM
Member
 
Join Date: Mar 2014
Posts: 120
Thanks: 4
Thanked 14 Times in 10 Posts
Rep Power: 1167
C175 is on a distinguished road
Re: Eco Diesel Mileage

Chicago to Toledo, 265 miles set on 60mph cruise, 38.2 mpg on the EVIC not bad for a winter day. Last trip to Toledo was 32 mpg, now it has 28k miles.


Sent from my iPhone using JeepGarage
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Eco Diesel Badge price? Sequoia 2014+ Jeep Grand Cherokee Ecodiesel 3.0 15 01-26-2014 11:29 AM
Thermostat Part# for Eco Diesel. SNUKE 2014+ Jeep Grand Cherokee Ecodiesel 3.0 0 01-09-2014 05:40 PM
Can i replace the pentastar 3.6 with the eco diesel ? jamesarant New Members - Welcome! 2 01-09-2014 03:04 AM
eco diesel oil filter Goonbash 2014+ Jeep Grand Cherokee Ecodiesel 3.0 16 12-25-2013 03:48 PM
Can I mix High mileage Full synthetic with regular High Mileage? sergioad89 Engine Performance/Intake/Exhaust 8 06-30-2012 07:38 AM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 06:59 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.