|
|
06-22-2017, 10:42 AM
|
#15
|
Senior Member
Tiffin Owners Club Winnebago Owners Club
Join Date: Feb 2012
Location: Las Cruces, NM
Posts: 4,040
|
I think the current estimate is about 6 gallons. There must be an official number somewhere but that seems about right.
__________________
Roger & Mary
2017 Winnebago Navion 24V (Sold)
2014 Tiffin Phaeton 36GH (Sold)
|
|
|
|
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
06-22-2017, 01:50 PM
|
#16
|
Senior Member
Freightliner Owners Club
Join Date: Apr 2002
Location: Pensacola
Posts: 2,728
|
Sprinter cut-away chassis, with the V-6 diesel engine- (Sprinter, Navion, View etc) has a 4.7 gallon DEF tank. Mercedes estimates 1720 miles per gallon of DEF. Seems fairly close to my results (1650+) over the 23K miles on my 2016. Again it depends on driving style and conditions..
__________________
Hooligan, Pensacola, Fl -U.S. Coast Guard 1956-1985
2016 Thor Siesta Sprinter 24ST diesel -1972 Moto Guzzi
2008 Suzuki Grand Vitara TOAD
|
|
|
06-22-2017, 05:40 PM
|
#17
|
Senior Member
Join Date: Jul 2015
Location: Currently; SW Cali. Sunny & warm!
Posts: 1,323
|
Quote:
Originally Posted by Hooligan
Sprinter cut-away chassis, with the V-6 diesel engine- (Sprinter, Navion, View etc) has a 4.7 gallon DEF tank. Mercedes estimates 1720 miles per gallon of DEF. Seems fairly close to my results (1650+) over the 23K miles on my 2016. Again it depends on driving style and conditions..
|
With those same records/logs estimate fuel consumed for those 23K mi. I'd expect the DEF to overall fuel consumed to be approx 2-3%?
|
|
|
06-25-2017, 08:41 PM
|
#18
|
Senior Member
Join Date: Oct 2012
Location: Oregon
Posts: 537
|
As "Hooligan" posted, I also had about 1700 miles when I added a gallon of DEF to top it off. My plan is to add a gallon about that often to avoid some problems associated with running it so low you get the warning light.
__________________
2016 Itasca Navion 24J (2015 Mercedes 3500 chassis)
|
|
|
06-25-2017, 08:48 PM
|
#19
|
Senior Member
Join Date: Oct 2012
Location: Oregon
Posts: 537
|
Quote:
Originally Posted by TexasSprinter
We just did a 4700 mile trip without adding DEF once. I tested once and was running about a liter every 600 miles. That seemed high so I took it to MB dealer. They tested, calibrated, tested some more, and said my usage was 'normal'. So I've not quite figured it out yet. I'm a little leery of the "wait until you get the message" method, but the dealer swears that is better than continually topping it off.
|
I was told the exact opposite. The dealer said keep it topped off to avoid running it so low to expose the sensor in the tank. Even though DEF is available on the road, I don't want to be looking for it while traveling. DEF is also sensitive to long term storage in high temps so I prefer not to carry it with me.
__________________
2016 Itasca Navion 24J (2015 Mercedes 3500 chassis)
|
|
|
06-25-2017, 10:53 PM
|
#20
|
Senior Member
Join Date: Jul 2015
Location: Currently; SW Cali. Sunny & warm!
Posts: 1,323
|
Quote:
Originally Posted by Camper Ken
DEF is also sensitive to long term storage in high temps so I prefer not to carry it with me.
|
No, it's direct sunlight (UV) DEF is not stable with. Would you suppose the folks in AZ's 120 heat drain it out and replace it with a fresh pint from the north side of the ice box every other day? They mount those reservoirs in spots that are warm / hot to thaw them out in sub freezing weather.
Obviously if it makes you feel better add it a pint at a time, do that.
Many modern day fluid sensors are not even exposed to the fluid they sense.
Keep the shiny side up.
|
|
|
06-26-2017, 11:48 PM
|
#21
|
Senior Member
Join Date: Oct 2012
Location: Oregon
Posts: 537
|
Quote:
Originally Posted by MtnTrek
No, it's direct sunlight (UV) DEF is not stable with. Would you suppose the folks in AZ's 120 heat drain it out and replace it with a fresh pint from the north side of the ice box every other day? They mount those reservoirs in spots that are warm / hot to thaw them out in sub freezing weather.
Obviously if it makes you feel better add it a pint at a time, do that.
Many modern day fluid sensors are not even exposed to the fluid they sense.
Keep the shiny side up.
|
Thanks for setting me straight on all this. Certainly makes sense. I was repeating what I'd read on forums like this.
__________________
2016 Itasca Navion 24J (2015 Mercedes 3500 chassis)
|
|
|
06-27-2017, 03:21 PM
|
#22
|
Senior Member
Join Date: Jul 2015
Location: Currently; SW Cali. Sunny & warm!
Posts: 1,323
|
No worries my friend. We should all check our facts the best we can from time to time. There's definitely wonderful merit to these forums and opinions being expressed. It seems the biggest issue in this information era is so much data. The trick is managing to make sense of it all.
Keep it between the ditches.
__________________
J & J, DRV Suites ES-38RSSA #9679 GM Denali, 3500HD-Max, 4x CC, 8' DRW,
EZGo-TXT, Clubcar Precedent
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|