How often do you change exhaust fluid?

DEF is consumed at a rate of about 2-3% relative to the amount of fuel you are using. This means between 1.2 and 2.0 gallons of DEF will be required for a vehicle with a 65-gallon gas tank. If you have a five-gallon DEF tank, DEF should be replaced every third or fourth time you fill up.

How much DEF fluid is used per mile?

2. How Often Do You Need To Fill Up the DEF Tank? That question specifically depends on miles per gallon and usage of the diesel truck in question. No matter how heavy the load, according to the OE manufacturer, the typical average light duty truck will consume 2-3 gallons of DEF per 800 miles.

What does service exhaust fluid system see owners manual now?

Just a moment as I pull up the info.Service Exhaust Fluid SystemIf a problem occurs with the DEF system, the DIC will display SERVICE EXHAUST FLUID SYSTEM SEE OWNERS MANUAL NOW. In some cases this message will clear itself, indicating that the DEF system was able to correct the condition.

What happens if your exhaust fluid is not replaced?

If poor-quality fluid is not replaced within 200 miles, the vehicle speed will be limited to 55 mph at the next vehicle start. If the system’s warnings continue to be ignored, vehicle speed will ultimately be limited to 4 mph in accordance with federal and state requirements.”

How much does a Duramax service fluid system cost?

I custom ordered a $64,000 2011 Chevy 3500 HD crew cab LTZ loaded with a Duramax. When I ordered it in December of 2010 there was no mention of a DEF system-none at all. Had I been informed of the DEF being included, I would have gone to another brand.

Can a service exhaust system go into limp mode?

Yes, but limp mode is 4mph and it seems to be related to key cycles. I not condoning it, but a lot of guys eliminate this DEF system with aftermarket exhausts and programmers. It shouldn’t go into limp mode.

What are the requirements for Diesel Exhaust Fluid ( DEF )?

DEF has strict requirements for maintaining concentration and purity of ingredients that is critical to the proper functioning and longevity of the SCR system. Cummins and other OEMs require that DEF used with their SCR systems meet all ISO22241 specifications as well as API certification requirements.

Where is the best place to store diesel exhaust fluid?

A. DEF should be stored in a cool, dry, well-ventilated area, out of direct sunlig While the optimum ht. storage temperature is up to 77 deg F (25 deg C), temporary exposure to higher temperatures has little to no impact on the quality of DEF.

How often do you change exhaust fluid?