Def tank capacaty - Diesel Place : Chevrolet and GMC Diesel Truck Forums
Home Forum Market Place Garage Lounge (0) Tuning Library DTC Tool Register Vendors
Go Back   Diesel Place : Chevrolet and GMC Diesel Truck Forums > GM Diesel Engines > Duramax Fifth Generation: 2011+ (LML)
Register FAQ Forum Rules My Replies My Threads Mark Forums Read Auto EscrowAuto LoansInsurance is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools
Old 05-01-2012, 01:35 PM   #1 (permalink)
Diesel Technician
Join Date: Feb 2007
Location: Winnipeg Manitoba Canada
Posts: 422
iTrader Score: -1 reviews

Def tank capacaty

How much def fluid does the tank hold. How many miles per tank. How much is left when 800 mi warning comes on
2011 ltz
2008ltz sold
Reply With Quote
Sponsored Links
Old 05-01-2012, 05:30 PM   #2 (permalink)
Diesel Head
Islander1123's Avatar
Join Date: Jul 2009
Posts: 28
iTrader Score: 0 reviews

It holds somewhere around 6 gallons. Ive been getting about 1000 miles to a gallon.
'11 Silverado 2500HD LML EC/SB LT 4X4
(Ordered 8/16/10, Received 10/18/10)
- Line-Xtra Color Matched Bed
- GM Smoked Hood Deflector
- GM Bed Rail Caps
- Weathertech Floor Liners
- Z71 Package
- 18'' Aluminum Wheels
- Tow Mirrors
- Convenience Package
- Interior Package
- Sliding Rear Window
- Back Up Camera
Offline   Reply With Quote
Old 05-01-2012, 06:33 PM   #3 (permalink)
Diesel Technician
Flinthunter's Avatar
Join Date: Nov 2005
Location: West Texas
Posts: 253
iTrader Score: 0 reviews

I filled mine up at 5156 miles and just yesterday after a 1200 mile trip with 8250 on the ticker it didn't quite hold 21/2 gallons. I think mine might be a bit better because my mpg have gone up and in that 3000 or so miles most of those have been road trips.
White 2011 2500 HD CC Denali 4X4 Dmax build date 8/11/11
Running around rig 72 chevy 3/4 ton 4X4, 427 big block.
Offline   Reply With Quote
Old 05-01-2012, 08:52 PM   #4 (permalink)
Diesel Technician
Join Date: Oct 2004
Location: Newark DE
Posts: 279
iTrader Score: 0 reviews

DelMarVa Diesel Club Member

5.3 gallons

Sent from my Autoguide iPhone app
2012 GMC 2500HD Denali CC SB
2005 GMC 2500HD EC SB 4x4 D/A ** SOLD **
2008 Chevy Avalanche Z-71 LT3
Offline   Reply With Quote
Old 05-01-2012, 10:55 PM   #5 (permalink)
Diesel Technician
Navyrep1's Avatar
Join Date: Feb 2011
Location: NW Washington State
Posts: 336
iTrader Score: 0 reviews

Armed Forces Club Member

The book says 5.3 gallons but it'll hold a bit more. The tank is larger than the quoted 5.3to allow for frozen expansion. If you fill until it "burps", it'll be almost 7 gallons....perfectly fine to do that in warm weather. Winter....not such a good idea. You'll burn about a gallon for every ~1200-1500 miles driven, depending on load. More fuel burned equals more DEF burned. 30K miles so far on mine. Believe me DEF is really no big deal at all. Enjoy the truck.
2011 GMC 2500HD CC SB SLT Z71(4x4) DMAX....everything except NAV. Defending your freedom since 1986.
Offline   Reply With Quote
Old 05-09-2012, 09:36 AM   #6 (permalink)
domano 68
Diesel Technician
Join Date: May 2007
Location: North Alabama
Posts: 224
iTrader Score: 0 reviews

I've topped mine off a couple of times recently for whatever reason. I've had trouble determining when to stop pouring; it tells me by spitting it back all over the place. Anyone come up with a good method to tell that it is full or almost full? TIA!
Offline   Reply With Quote
Old 05-09-2012, 01:34 PM   #7 (permalink)
GM Customer Svc
Official GM Rep
GM Customer Svc's Avatar
Join Date: Jan 2012
Location: Michigan
Posts: 1,093
iTrader Score: 0 reviews

To maximize driving range and to prevent over filling the tank, wait until the "Exhaust Fluid Range: 1000 miles (approximate)" message appears on the DIC. At this point, add up to 3.5-gal. Do not add more than 3.5 gal of DEF. When using the CC&A DEF fluid with the nozzle properly installed, when fluid reaches the top of the fill pipe, stop filling. Instructions are provided on the bottle for proper nozzle installation. If another source of DEF is being used, when fluid initially reaches the top of the fill pipe, stop filling and do not force additional fluid into the tank.

As " Navyrep1" stated, it is not recommended to fill the tank beyond 5.3-gal. DEF basically behaves like water and will freeze at 12degrees Fahrenheit and will expand. This does not normally cause a problem if the DEF tank is not overfilled. Adding more than the 5.3-gal usable capacity may not allow for DEF expansion when frozen.

GM Customer Service
Offline   Reply With Quote
Sponsored Links

Thread Tools

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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tank lining failure. Spectra fuel tank or Dorman? CTHal 6.5L Diesel Engine 0 07-08-2010 11:51 PM
DeeZee liquid transfer tank as auxiliary tank setup? Generalg Fuel System, Air, Exhaust, & Emissions Upgrades 4 10-18-2009 05:20 PM
Titan tank + factory rear from dual tank setup? Chevy454 Fuel System, Air, Exhaust, & Emissions Upgrades 1 07-15-2009 05:19 PM
*Fuel tank pickup install - Drop Tank or Remove Tank* Kingston Fuel System, Air, Exhaust, & Emissions Upgrades 3 02-07-2009 11:31 PM
Fuel Tank Pickup install - Drop Tank or Remove Bed Kingston Fuel System, Air, Exhaust, & Emissions Upgrades 4 02-07-2009 11:17 PM

All times are GMT -4. The time now is 01:40 AM.

Shoutbox provided by vBShout v6.2.1 (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
© AutoGuide

SEO by vBSEO 3.6.0