Good Sam Club Open Roads Forum: Auxiliary tank - full or empty?
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tow Vehicles

Open Roads Forum  >  Tow Vehicles

 > Auxiliary tank - full or empty?

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Next
Durb

NW

Senior Member

Joined: 01/15/2016

View Profile



Good Sam RV Club Member


Posted: 11/17/20 02:30pm Link  |  Quote  |  Print  |  Notify Moderator

After a long trip, my auxiliary tank is currently empty. I have winterized my trailer and won't be towing until next Spring. I have no need for the added range the tank offers until then. Should I leave the auxiliary tank empty or fill it up for storage?

jdc1

Rescue, Ca

Senior Member

Joined: 05/30/2011

View Profile


Offline
Posted: 11/17/20 02:37pm Link  |  Quote  |  Print  |  Notify Moderator

Diesel? Diesel will last a day before forever. Gas? Gotta keep cycling it.

JRscooby

Indepmo

Senior Member

Joined: 06/10/2019

View Profile


Offline
Posted: 11/17/20 04:04pm Link  |  Quote  |  Print  |  Notify Moderator

jdc1 wrote:

Diesel? Diesel will last a day before forever. Gas? Gotta keep cycling it.


This. But you also need to think about the extra fuel and wear needed for hauling the weight of fuel you don't need.

wanderingbob

monticeeo, fla

Senior Member

Joined: 07/26/2012

View Profile


Offline
Posted: 11/17/20 04:14pm Link  |  Quote  |  Print  |  Notify Moderator

Fill it up , helps prevent condensation , also fuel is pretty cheap now .

Durb

NW

Senior Member

Joined: 01/15/2016

View Profile



Good Sam RV Club Member


Posted: 11/17/20 07:26pm Link  |  Quote  |  Print  |  Notify Moderator

I'm not concerned with the weight or cost of the extra fuel. Do I have to put an anti-algae agent in the fuel if I let it sit for 6 months? If so, recommendation. The weather will be cool and humid (rain).

Grit dog

Black Diamond, WA

Senior Member

Joined: 05/06/2013

View Profile


Offline
Posted: 11/17/20 08:07pm Link  |  Quote  |  Print  |  Notify Moderator

It won't hurt to let it just sit full, but why...
Either leave it empty or empty-ish, or continue to use it if it's a gravity feed tank. Is it an actual auxillary tank, or a slip tank you have to pump in?

Unless the truck is just parked, then I'd leave it empty.
If it's parked outdoors, condensation is a concern. In doors, not hardly at all.


"Yes Sir, Oct 10 1888, Those poor school children froze to death in their tracks. They did not even find them until Spring. Especially hard hit were the ones who had to trek uphill to school both ways, with no shoes." -Bert A.

Edd505

Elephant Butte, NM

Senior Member

Joined: 05/20/2015

View Profile



Good Sam RV Club Member

Offline
Posted: 11/17/20 08:28pm Link  |  Quote  |  Print  |  Notify Moderator

I keep mine full at all times, trucks filled from the tank and tanks gets filled at the pump, keeps the diesel fresh. I use the TSD fuel card currently at the T/A truck stop for best price. Closest is 75 miles from home in a city I get to once a week or maybe two at the most.


2015 F350 FX4 SRW 6.7 Crew, longbed - 2017 Durango Gold 353RKT
2006 F350 SRW 6.0 crew longbed sold
2000 F250 SRW 7.3 extended longbed airbags sold
2001 Western Star 4900EX sold
Jayco Eagle 30.5BHLT sold, Layton 24.5LT sold


Bionic Man

Colorado

Senior Member

Joined: 04/03/2009

View Profile



Posted: 11/17/20 08:31pm Link  |  Quote  |  Print  |  Notify Moderator

My aux tank stays full all the time. My truck is rarely used in the winter. Never had a problem with the fuel, and I don't use any additives.


2012 RAM 3500 Laramie Longhorn DRW CC 4x4 Max Tow, Cummins HO, 60 gallon RDS aux fuel tank, Reese 18k Elite hitch
2003 Dodge Ram 3500 QC SB 4x4 Cummins HO NV5600 with Smarty JR, Jacobs EB (sold)
2002 Gulf Stream Sea Hawk 29FRB with Honda EV6010

Lantley

Ellicott City, Maryland

Senior Member

Joined: 08/23/2005

View Profile


Online
Posted: 11/17/20 08:59pm Link  |  Quote  |  Print  |  Notify Moderator

My thought is keeping full. Avoid any moisture or condensation in the tank.
Weight and cost are negligible factors for me.


2019 Duramax w/hips,2012 Open Range,Titan Disc Brake
H-head TPMS,BD3,RV safepower,17" Blackstone
Ox Bedsaver,RV760 w/BC20,Glow Steps
BakFlip,RVLock,5500 Onan LP,Prog.50A surge,Hughes autoformer
Porta Bote 8.0 Nissan,Sailun S637
Correct Trax,Splendide


fj12ryder

Platte City, MO

Senior Member

Joined: 08/19/2003

View Profile



Posted: 11/17/20 09:08pm Link  |  Quote  |  Print  |  Notify Moderator

If the tank is full there is less room for condensation to form. I always fill both tanks before I put the Cummins away for the winter.


Howard and Peggy

"Don't Panic"

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Next

Open Roads Forum  >  Tow Vehicles

 > Auxiliary tank - full or empty?
Search:   Advanced Search

Search only in Tow Vehicles


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2021 CWI, Inc. © 2021 Good Sam Enterprises, LLC. All Rights Reserved.