Diesel Exhaust Fluid - Shop DEF Fluid - AutoZone Reduce emissions and keep your diesel vehicle running clean with diesel exhaust fluid (DEF) from AutoZone We sell the best brands, including AutoZone, Lumax, and Peak Blue DEF fluid We also sell accessories, like a DEF pump, nozzle, flow meter, or coupler
What Is DEF and How Does It Work? - MotorTrend Diesel exhaust fluid, or DEF, is a key component in lowering pollutants emitted from diesel engines, helping to improve efficiency and reduce emissions
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What Exactly Is DEF What Does The Acronym Stand For? The letters DEF stand for diesel exhaust fluid Sometimes, you'll hear people refer to it as DEF fluid, and all three formats are acceptable If you're interested in learning more about DEF,