Adding more DEF is easy since it can be found in all truck stops and automotive parts stores. As of , some truck stops added DEF pumps next to the fuel pumps so that you can fill up both fluids without moving your truck.
DEF consumption can vary based on environmental factors but is normally expected to be between 2 and 3 percent of fuel consumption. This means that for a diesel truck with a gallon gas tank, around 1 gallon of DEF will be used for every full tank of gas. Shelf Life of Diesel Exhaust Fluid. The shelf life of DEF is a function of ambient storage temperature.
DEF can last for about 2 years if the maximum storage temperature does not exceed 75 degrees Fahrenheit for any extended amount of time. View Land Rover in your market. Stored in a dedicated tank in your car, it is injected into the exhaust system to clean exhaust gases. FAQS -. Follow these simple steps: 1. Using the down arrow button on the steering wheel control, scroll down and highlight Vehicle Info 4.
Press the OK button to confirm selection 5. Press the OK button to confirm selection. The consumption of DEF can vary greatly. Should you run out of DEF your Land Rover will not re-start after you switch off the engine - this is a requirement of EU6 emissions legislation. The tank will need to be refilled with a minimum of 3. Although DEF is non-hazardous, should it come in to contact with any part of your body, or it is ingested by accident, please refer to the advice on the packaging and seek medical advice.
However, DEF can stain upholstery and clothing — if spilt, DEF should be removed immediately using cold water and a damp cloth. Water is, well, water. This is obviously a super-simplified version of how SCR works, but it's not unlike the way your gasoline-powered car's catalytic converter works, aside from the extra step of injecting urea into the exhaust stream.
Most modern diesel engines use SCR in combination with exhaust gas recirculation and a diesel particulate filter DPF to reduce emissions. Exhaust gas recirculation or EGR is a common process that is used in nearly all modern ICE engines to reduce the amount of unburnt fuel in a vehicle's exhaust gases. The downside to EGR is that it can negatively affect vehicle performance and fuel economy, plus it adds another complex system to an already complex machine.
As a response to the weaknesses of EGR, some companies are removing that system from their engines and using slightly more DEF to treat their exhaust gases, thus achieving similar results without the sacrifices in performance and economy.
All of this sounds good, right? I mean, you probably have to fill it up all the time, right? And it's expensive, right? A typical tankful of DEF will need to be refilled approximately every time you change your oil.
It's mostly water too, so it's not going to break the bank. Understanding this increasingly visible emissions control system is becoming more and more critical as US truck manufacturers begin to offer more diesel models in traditionally gasoline-dominant segments. Each of the Big Three is either already offering or plans to offer a smaller-displacement lighter-duty diesel engine in their high-volume half-ton truck range.
Where DEF really becomes critical is in big diesel engines. We don't mean like your Cummins 6BT, we're talking Class 8 semi-trucks. These vehicles do millions of miles over their lifespans, and their massive diesel engines go through a lot of fuel in that time.
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