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What You Should Know About Diesel Exhaust Fluid

In the last 10 years, restrictions on diesel fuel emissions in cars and heavy-duty trucks have become more stringent. You’re now required to have diesel particulate filters and biannual visual inspections that check that smog-reducing equipment is still part of your vehicle. By choosing the best diesel exhaust fluid quality, you can be sure that your truck still has the power and torque that you desire. So, what do you need to know about the additive that removes pollutants from your exhaust? Here are the basics.

What It Is

DEF is a solution that’s injected into the exhaust stream as it travels through the vehicle and changes it into harmless nitrogen and water particles. Diesel exhaust fluid is made from deionized water and urea which turns into ammonia to do its job. It’s not affected by freezing or thawing. Because manufacturers are allowed to tune their engines however they wish, trucks are back to having excellent power despite smog regulations.

Running Out

Just like your gas tank, letting your DEF tank run dry is a bad idea. Your vehicle won’t run without it. It should, however, warn you when you’re getting low. Some vehicles have a digital readout or fuel gauge, while others offer an indicator light. It depends on the model and year of your truck. The warning will usually appear when you’ve gotten down toyour last 10 percent and increase in frequency or brightness as you get lower. Without DEF, your truck will either have its speed and power reduced or be shut off completely until the fluid is refilled.

Filling Up

Car and truck manufacturers will try to convince you to come in to have your DEF tank refilled, but you can save money by doing it yourself. Just make sure you’re buying high-grade diesel exhaust fluid quality and not creating your own. The SCR system is incredibly sensitive to impurities, so homemade DEF will often ruin your vehicle.

You may be wondering, “Where can I find diesel exhaust fluid near me?” It’s available in stores such as truck stops, automotive shops and sometimes big box stores such as Walmart. Depending on your needs, you can buy it in 1 or 2.5-gallon bottles or get it in bigger quantities available in either barrels or totes. Once you have your fluid, simply refill your tank through the port which is usually located next to the fuel filler or under the hood in trucks or in the trunk of a car or SUV.

If you have a diesel-powered vehicle, diesel exhaust fluid quality and the SCR process are now a part of your daily driving life. Remember to refill your tank and you’ll have more fuel-efficiency and power than trucks that use other smog-reducing systems.

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