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Over the years, restrictions have gotten tighter regarding emissions on ¾ and 1-ton pickup trucks. While they were originally allowed to travel without smog equipment, recent years have seen new EPA regulations that include diesel particulate filters as well as smog tests every two years that require visual inspections to make sure none of the equipment has been removed.

Many were afraid this meant the end of power and torque in their pickups, but truck manufacturers have found a way to provide power and still make trucks safer for the environment. They now create pickups that use diesel exhaust fluid to start selective catalytic reduction. This turns toxic NOx into harmless nitrogen and water molecules. Some truck drivers still have misconceptions about DEF, but as long as diesel exhaust fluid prices remain low, there’s nothing to worry about. Here are four common myths demystified.

DEF Is Made from Animal Urine

 Diesel exhaust fluid contains a regulated mixture of deionized water and urea. While urea can be found as a byproduct of urine, it’s synthetically produced for use in DEF, so no animals are harmed to create it.

DEF Is Hard to Find

 These days, DEF is a commonly used car maintenance item. You can find it in most auto part stores and truck stops as well as some big box stores such as Walmart. It’s sold in several sizes from 1 or 2.5-gallon bottles to drums and totes up to 330 gallons, depending on the retailer. Diesel exhaust fluid price per gallon goes down as the size goes up.

DEF Has To Be Filled Every Time You Get Gas

Not true. A 2.5-gallon jug will usually last you for approximately 800 miles depending on the weight of your truck and anything you’re towing. This means you won’t pay a lot for diesel exhaust fluid prices. Different truck years and models will indicate low levels in diverse ways. For example, Ram trucks tend to use something similar to a fuel-gauge, Fords use a “low” indicator light and GM trucks often have a digital readout.

DEF Destroys Fuel Mileage

This couldn’t be further from the truth. Using SCR technology with DEF actually meansthat truck manufacturers are able to tune the engine to be both more powerful and more fuel-efficient compared to those that use other smog-reduction processes. In fact, it can improve fuel mileage by up to 5 percent.

If you’re worried about diesel exhaust fluid prices and ingredients or your truck’s fuel mileage, you don’t have to be. These negative ideas are common misconceptions about the use of DEF. In reality, the SCR system will make sure you’re driving a truck with more power and torque balanced with reasonable cost and fuel-efficiency.

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