by airbalance [OP] » Jan 03 2011, 11:37pm
by LBZDMAX » Jan 04 2011, 2:26am
by adams99z71 » Jan 04 2011, 4:43pm
by Z15 » Jan 04 2011, 4:46pm
adams99z71 wrote:i like using royal purpuil in my diffs, transfercase and radiator. for as often as i change the diff oil i dont mind spending a little more. also i use castrol high miliage engine oil and gm auto trans fluid.
Diesel Exhaust Fluid Fill in Cold Weather
By Blog Post on November 1, 2010 3:39 PM | No Comments
When filling the Diesel Exhaust Fluid (DEF) on the 6.6L Duramax diesel engine available on the 2011 Silverado and Sierra HD trucks and 2010 interim and 2011 Express and Savana vans, it's important to not overfill the DEF tank.
TIP: With colder weather coming, keep in mind that DEF behaves like water and will freeze at 12°F (-11°C) and will expand.
Adding more than the 5.3 gallon (20 liter) usable capacity may not allow for DEF expansion if it freezes.
DEF will not be damaged by freezing, and will remain fully usable when thawed. The fluid tank includes a DEF pump heater, reservoir heater and line heater.
Vehicles are shipped with 2 gallons (7.5 liters) of DEF from the assembly plant. To prevent damage from freezing, at customer delivery or during PDI, do not add more than approximately 3.3 gallons (12.5 liters) of remaining capacity.
The 5.3 gallon (20 liter) capacity of the DEF tank will last approximately 5,000 miles (8,000 km) depending on drive cycles and vehicle use. The easiest way for customers to ensure that the tank is not overfilled is to wait until the EXHAUST FLUID RANGE: 1000 MILES (1600 km) message is displayed on the Driver Information Center. At this approximate mileage, add no more than 3.5 gallons (13 liters) of DEF. When fluid reaches the top of the fill pipe, stop filling.
- Thanks to B.J. Lackey
by adams99z71 » Jan 04 2011, 5:07pm
by LBZDMAX » Jan 04 2011, 5:12pm
adams99z71 wrote:so anyone taking bets about how long until someone asks how to disable the def system?
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