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06-06-2018, 04:32 PM
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#1
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Senior Member
Join Date: Jan 2018
Location: Harlingen
Posts: 257
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Seneca DEF
I'd like to hear how much DEF your using in your Seneca. I'm seeing about a gallon for every 500 miles.
Thanks
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06-06-2018, 04:41 PM
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#2
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Senior Member
Join Date: Apr 2016
Location: Kingman AZ and where our Seneca is today.
Posts: 3,114
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Quote:
Originally Posted by whporwil
I'd like to hear how much DEF your using in your Seneca. I'm seeing about a gallon for every 500 miles.
Thanks
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About the same...
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Steve & Stacy with Jasper (Australian Cattle dog)
2015 Seneca 36FK
Custom 27' flatbed trailer hauling:
07 Toyota FJC & Yamaha Kodiak 400 ATV
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06-06-2018, 05:40 PM
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#3
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Member
Join Date: Mar 2017
Location: NAMPA
Posts: 98
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Quote:
Originally Posted by SloPoke
About the same...
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Closer to 400 miles always towing 7000 lbs in the west. Mostly off freeway. 2014 37ts.
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06-06-2018, 07:14 PM
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#4
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Senior Member
Join Date: Oct 2017
Location: Oregon Coast
Posts: 3,086
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About the same on mine.
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Brian & Jeannie
2018.5 Seneca 37RB with to many mods to list
2015 Jeep JKU Rubicon
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06-07-2018, 05:17 AM
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#5
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Senior Member
Join Date: Apr 2017
Location: Treasure Coast Florida
Posts: 643
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401.288 mpDEFg
__________________
Rick with Lori and Two Pekes
'16 Jayco Seneca HJ Topaz
'13 Mini Cooper toad : Blackhawk All-Terrain tether
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06-07-2018, 06:20 AM
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#6
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Senior Member
Join Date: Jul 2015
Location: Southern Illinois
Posts: 880
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About the same. Always fill at Love's, back in the truck fueling area. Good price and easy to fill. I'm sure its a little more, but I work on the one gallon per light on the dash and always plan to fill when 2 lights are out. 50,000 miles in 3 years and going strong.
__________________
Smooth Sailing,
Ric and Jan Golding
Southern Illinois
2016 Jayco Seneca 37FS
2016 Chevrolet Traverse
2018 Cheverolet Silverado
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06-07-2018, 11:59 AM
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#7
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Senior Member
Join Date: Nov 2016
Location: Denver
Posts: 428
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Def
Just did 2200 mile trip with car trailer and needed 5 2.5 gal boxes. I fear the DEF at the pump could be old so I buy boxes at Sams; what do you all do?
__________________
Riley & Myla
2018 Jayco Seneca 37TS
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06-07-2018, 12:55 PM
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#8
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Senior Member
Join Date: Feb 2017
Location: Davie, Fl.
Posts: 1,020
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Quote:
Originally Posted by McGintys924
Just did 2200 mile trip with car trailer and needed 5 2.5 gal boxes. I fear the DEF at the pump could be old so I buy boxes at Sams; what do you all do?
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My thinking is that with all the trucks needing DEF at truck stops, it should be pretty fresh. And it sure is convenient.
__________________
Mark and Joanne
2018 Jayco Seneca 37TS (M2)
2023 Jeep Rubicon XT Recon
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06-08-2018, 06:24 AM
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#9
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Senior Member
Join Date: Jul 2015
Location: Southern Illinois
Posts: 880
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Quote:
Originally Posted by Mark S
My thinking is that with all the trucks needing DEF at truck stops, it should be pretty fresh. And it sure is convenient.
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Ditto! Exactly why we only buy at Love's truck stops.
__________________
Smooth Sailing,
Ric and Jan Golding
Southern Illinois
2016 Jayco Seneca 37FS
2016 Chevrolet Traverse
2018 Cheverolet Silverado
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06-08-2018, 06:33 AM
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#10
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Senior Member
Join Date: Jul 2016
Location: Vancouver
Posts: 197
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Under load using a gallon every 3-500 depending is completely normal. It’s dependent on engine load so when you hear about trucks only needing DEF every 3-4 thousand miles it’s because they’re not running them hard.
I always try and buy at the pump, usually at truck stops, as it’s being turned over on a regular basis. In the box - get a DEF checker and make sure it’s fresh before you put it in your tank if there is any question.
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06-08-2018, 07:07 AM
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#11
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Senior Member
Join Date: Jul 2016
Location: Panama City
Posts: 569
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It's a 50:1 ratio (or 2%) which is right on for 500 miles (based on 10 miles per gallon).
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Dave & Patricia
2017 Seneca 37FS
2016 Toyota Highlander
Kar Kaddy SS
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06-17-2018, 04:01 AM
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#12
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Member
Join Date: Jun 2018
Location: Jonesborough
Posts: 85
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I buy the Supertech 2.5 gallon jugs at walmart. The last one was $7.49 I think. How much is DEF at the pumps per gallon? I just buy 4 or 5 of them at a time and store it in a side compartment.
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06-17-2018, 05:17 AM
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#13
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Senior Member
Join Date: Feb 2017
Location: Davie, Fl.
Posts: 1,020
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Under $3 a gallon at the pump. I keep a 1 gallon jug for the just in case but haven't had to use it yet.
__________________
Mark and Joanne
2018 Jayco Seneca 37TS (M2)
2023 Jeep Rubicon XT Recon
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06-17-2018, 06:02 AM
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#14
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Member
Join Date: Jun 2018
Location: Jonesborough
Posts: 85
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I usually do not buy fuel at the tractor trailer fuel isle because they usually add a surcharge if a card is used. At the car pumps most do not.
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06-18-2018, 03:51 PM
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#15
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Senior Member
Join Date: Oct 2016
Location: Albuquerque
Posts: 357
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the 5 cents a gallon charge is worth it for me to gain the benefit of the satellite pump and def all in one stop. Lets say your doing 60 gallons...thats $3.00. With gas at $3.19 (with the charge) where I am at, thats $191.40 vs $188.40. its also well within the difference in prices between nearby stations so I dont mind paying it.
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2016 Seneca 37FS
DW+7 kids+2 dogs=bunkhouse required
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06-23-2018, 12:14 PM
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#16
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Junior Member
Join Date: Sep 2017
Location: Greenville
Posts: 14
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I use about the same as everyone has stated in my 2018 Seneca. I have a question for the forum...….how many times and days have you had to put your Seneca in the shop? For me, over 120 days in the 8 months owned! I am starting to ask myself what does a LEMON smell like???? The old sarge says.
Regards
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06-23-2018, 12:30 PM
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#17
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Senior Member
Join Date: Oct 2017
Location: Oregon Coast
Posts: 3,086
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Quote:
Originally Posted by OldSarge
I use about the same as everyone has stated in my 2018 Seneca. I have a question for the forum...….how many times and days have you had to put your Seneca in the shop? For me, over 120 days in the 8 months owned! I am starting to ask myself what does a LEMON smell like???? The old sarge says.
Regards
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I havent had mine in at all.....but I just tend to fix minor things myself rather that wait a month to get in, having it sit at the dealer for weeks and then getting it back half-assed work and then redoing their work to make it right....but thats just me. What have you had to have it in for?
__________________
Brian & Jeannie
2018.5 Seneca 37RB with to many mods to list
2015 Jeep JKU Rubicon
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06-23-2018, 12:59 PM
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#18
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Senior Member
Join Date: Feb 2017
Location: Davie, Fl.
Posts: 1,020
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Quote:
Originally Posted by OldSarge
I use about the same as everyone has stated in my 2018 Seneca. I have a question for the forum...….how many times and days have you had to put your Seneca in the shop? For me, over 120 days in the 8 months owned! I am starting to ask myself what does a LEMON smell like???? The old sarge says.
Regards
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Wow. What kind of issues are you having?
Mine has had all little stuff I fixed myself.
__________________
Mark and Joanne
2018 Jayco Seneca 37TS (M2)
2023 Jeep Rubicon XT Recon
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06-23-2018, 01:03 PM
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#19
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Member
Join Date: Apr 2016
Location: Lubbock
Posts: 48
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What's DEF?
I tow my fiver with a Ford diesel that I deleted (removed the DPF & installed a tuner) the day I bought it. Haven't used a single drop of DEF, plus my fuel economy is about 2 mpg better, as compared to my previous Powerstroke.
If I had a diesel motorhome and was using that much DEF, I would delete it as well.
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06-23-2018, 06:24 PM
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#20
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Member
Join Date: Feb 2016
Location: Hondo
Posts: 95
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I use about 1 gal of DEF every 500 miles.
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