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DEF for Farmers

The focus of diesel exhaust fluid (DEF) is often in the transportation industry, but there are several other industries that use DEF. For example, any vehicle that uses a diesel engine will eventually be required to meet EPA pollution standards. This includes marine vehicles, airplanes, cars, trucks, and even farm equipment like tractors. So what does diesel exhaust fluid (DEF) mean for the agricultural industry? Farmers are struggling to understand how diesel exhaust fluid and selective catalytic reduction technology will affect them in the future. Read on to get a glimpse into the future of the agricultural industry as it begins to use DEF.


Why Does Ag Have To Use DEF?

It’s true that there are many more eighteen-wheelers on the road than there are tractors in the fields. However, farm vehicle emissions are not insignificant. Any vehicle that uses either petroleum or diesel is contributing to pollution, and diesel pollution can be especially harmful. Clean air is an important part of preserving the planet for the future. Agriculture equipment manufacturers already comply with previous EPA standards, but Nitrogen Oxides (NOx) and Particulate Matter (PM) continue to cause problems like smog, acid rain and respiratory problems. This means that there must be additional changes for the agriculture, transportation, and automotive industries.

In order to meet current EPA standards, these changes must incorporate Selective Catalytic Reduction (SCR) technology, which uses diesel exhaust fluid. Manufacturers of both diesel passenger vehicles and trucks have already embraced SCR technology, but it is slowly being incorporated into agricultural equipment as well.

What are the benefits of SCR for farmers?

The benefits of SCR for farmers are similar to the benefits for truckers. SCR allows the diesel engine to run more efficiently while simultaneously reducing pollution. SCR promises a substantial improvement in fuel economy while reducing emissions. Furthermore, as the engine is not modified for additional emission requirements, none of its power and torque is affected. The major benefit of SCR technology is cleaner emissions, but there are many other benefits as well. One of the additional benefits of using SCR is the ability of OEMs to create high-horsepower tractors that are more fuel efficient. Some fuel savings are even up to 15%.

Why doesn’t SCR hinder the engine?

SCR technology is post-combustion, which means it doesn’t interfere with the engine at all. The engine can be tweaked to provide as much power as it can and the SCR technology will not hinder its performance at all. It is only after the exhaust leaves the engine that the SCR technology comes into effect and reduces the emissions. Since SCR technology injects diesel exhaust fluid into the exhaust, the ammonia from the urea solution reacts with the nitrogen oxides to leave only nitrogen and water in the exhaust. Thus, SCR doesn’t hinder the engine because the SCR components are out of the engine, which can be modified.