Thread Tools Search this Thread Display Modes
Old 06-05-2015, 10:45 AM   #1
2016 30' International
Big Lake , Alaska
Join Date: Dec 2011
Posts: 65
Running out of diesel

This would probably better be posted on a diesel truck forum but I probably wouldn't understand the answers I got so I am hoping that some of the more experienced diesel TV users here know the answer.

I have an auxiliary tank on our F250 that is controlled by a switch in the cab. I hope I never get in this situation but if I were to run either the auxiliary tank or the main tank dry until the engine started to run out of fuel and I switched tanks, would I likely be stuck on the side of the road or would the fuel system be able to work the air out of the line and pull fuel out of the other tank?

I know that running out of diesel generally involves a tow to the shop to bleed the air out of the fuel line but if the fuel supply is interrupted only briefly, and the vehicle is still moving, would it continue to run?

akjam is offline   Reply With Quote
Old 06-05-2015, 10:59 AM   #2
Rivet Master
Al and Missy's Avatar

2002 30' Classic S/O
Melbourne Beach , Florida
Join Date: Nov 2013
Posts: 3,926
What year is your truck? It is my understanding that the newer (I don't know what that means, either) engines can bleed air out of the lines, although I can't confirm it in practice. Check your manual or call your local dealer.


"You cannot reason someone out of a position they have not been reasoned into"
Al, K5TAN and Missy, N4RGO
WBCCI 1322
2002 Classic 30 Slideout -S/OS #004
2013 Dodge 2500 Laramie 4x4 Megacab Cummins

Al and Missy is offline   Reply With Quote
Old 06-05-2015, 11:16 AM   #3
retired USA/USAF
2001 30' Excella
Somerset , New Jersey
Join Date: Jan 2009
Posts: 2,388
My '06 Dodge will self bleed the air. I turn the ignition on and momentarily to crank and it will start the fuel pump. I need to do it each time I replace the fuel filter it only takes a few seconds to fill the filter canister. Older diesels ( I'm not sure when they changed) needed to open a fuel line while cranking to bleed the air. I'm pretty sure all modern diesels are self bleeding.
Roger in NJ

" Democracy is the worst form of government. Except for all the rest"
Winston Churchill 1948

TAC - NJ 18

polarlyse is offline   Reply With Quote
Old 06-05-2015, 11:53 AM   #4
2 Rivet Member
2015 27' FB International
Newmarket , Ontario
Join Date: Nov 2013
Posts: 30
Common rail diesel trucks SUVs have very high pressure (19,000 lbs) that supply the injectors. On my Touareg TDI the unused fuel is returned to the tank hot and mixes with the cooler fuel in the tank. This is then picked up to supply the HPFP to supply high pressure fuel again. I have seen several recommendations that indicate the fuel tank be kept 1/4 full to ensure proper cooling for the fuel pump.

Just a thought?

Newmarketca is offline   Reply With Quote
Old 06-05-2015, 01:40 PM   #5
Rivet Master
cwf's Avatar
1999 34' Excella
Currently Looking...
Hillsboro , Texas
Join Date: Feb 2013
Posts: 6,282
Images: 2
Running 'dual tanks' I have always refilled the main tank when 1/2 has been used. So, I 'run out' of the 'auxilliary' tank first... that does not hurt the truck fuel system and keeps the fuel 'fresh'....because it is always being used.
Peace and Blessings..
WBCCI# 30676
cwf is offline   Reply With Quote
Old 06-05-2015, 01:44 PM   #6
Rivet Master
Msmoto's Avatar

2015 30' International
2009 27' FB International
2007 25' Safari
Currently Looking...
Greensboro , North Carolina
Join Date: Aug 2008
Posts: 1,559
Images: 135
Running out of diesel

Having returned from Wisconsin, about 1000 plus miles, I thought I might need to refill the main and 60 gallon auxiliary tank in the bed.

Actually for only about $171 I did just that...I think about 66 gallons. Now, my tank is gravity feed, and on a long run, it is allowed to feed continuously into the main tank, passing through a clear plastic fuel filter as it drops from the Aux Tank into the main tank. However, the actual feed tubing from the Aux Tank, goes up hill about an inch, thus preventing all the fuel in the aux from feeding the main tank. Or, I have about 10 gallons of reserve, easily drained not the main tank if I simply reduce the "hump" in the hose and allow gravity to do its work.

I use an inline clear plastic filter so as to be able to see if there is water or other garbage in the fuel from the aux tank. Any water would collect on the bottom of the filter I believe.

And, mpg from Wisconsin...15.1....down hill, I guess....LOL
Happy trails and Good Luck
Ms Tommie Fantine Lauer, Greensboro, NC
AIR #31871 K4MTL
Msmoto is offline   Reply With Quote
Old 06-05-2015, 01:52 PM   #7
Rivet Master
1988 25' Excella
1987 32' Excella
Knoxville , Tennessee
Join Date: Oct 2010
Posts: 3,404
Blog Entries: 1
You do not want to run out of diesel. The injection pump is lubricated by the diesel and will destroy itself very quickly if run dry.
Bill M. is offline   Reply With Quote
Old 06-06-2015, 01:42 PM   #8
New Member
Bucknkd's Avatar
1987 29' Sovereign
Tallahassee , Florida
Join Date: Nov 2014
Posts: 2
The Ford 6.0 diesel models will self prime. Just turn the key and let the fuel pump run until it stops. Then turn off the key and do it again about 15 times. Then turn it on and crank it up.

I suspect the 6.4 and 6.7's are the same.

Bucknkd is offline   Reply With Quote
Old 06-06-2015, 02:50 PM   #9
Regular Guy
NavyCorpsman's Avatar
1978 31' Sovereign
Hot Springs , Arkansas
Join Date: Aug 2014
Posts: 599
My 2002 F250, would self prime with its electrical lift pump. Nice.

My 83 Suburban would require cracking each injector open until fuel dripped while cranking. Then it was 30 minutes of CPR until it ran right. The tank bottom was not what was indicated on the gauge. Lesson learned.
NavyCorpsman is offline   Reply With Quote
Old 06-06-2015, 04:26 PM   #10
2 Rivet Member
2013 25' FB Flying Cloud
Tallahassee , Florida
Join Date: Feb 2014
Posts: 28
I have a F-250 with a 6.0. When I change the fuel filters there is air in the filters. Never a problem, start up and go.
Omega Man is offline   Reply With Quote
Old 06-08-2015, 10:58 AM   #11
Rivet Master
m.hony's Avatar
2013 30' Classic
Greenwood , Mississippi
Join Date: Oct 2012
Posts: 12,111
The GM Duramax diesels have a big ole primer bulb to push, but it still ain't no good idea to run out or to run low, as it might pick up sediment and trash from the bottom of the tank and clog the fuel filter. We say as a rule of thumb to fill up at 1/4 tank.

2013 Classic 30 Limited
2007 Silver Toyota Tundra Crew Max Limited 5.7 iForce
2006 Vivid Black Harley-Davidson Road King Classic
1999 Black Nissan Pathfinder LE
TAC #MS-10
WBCCI #1811, Region 6, Unit 56
Airforums #70955
m.hony is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Airstream Land Yacht Diesel Repo Slide out Wash/dryer SAirstream Land Yacht Diesel R eBay Watch Airstreams on eBay 0 08-04-2011 07:10 PM
diesel left running xrvr Sprinter and B-van Forum 27 07-24-2010 05:27 PM
Anyone out there running MagHytec Silvertwinkie Tow Vehicles 7 05-13-2009 05:19 PM
Running the refrigerator with out propane tanks khaled Electrical - Systems, Generators, Batteries & Solar 22 12-09-2008 05:41 PM
Running Univolt W/ Out Battery andoboba Batteries, Univolts, Converters & Inverters 1 10-12-2004 09:38 AM

Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.

All times are GMT -6. The time now is 06:35 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.