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Osco Tank & Truck Sales offers DEF trucks, but what exactly are DEF trucks? DEF stands for “Diesel Exhaust Fluid.” It’s a system that helps convert nitrogen oxide (a dangerous emission)  into harmless nitrogen and water. In 2018, the EPA required diesel particulate filters on all three-quarter-ton and larger trucks. The requirements were aimed at […]


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With so many options for so many different trucks out there, it’s hard to make a decision. It’s even harder when options like DEF trucks get thrown in. While considering how the engine meets your needs, how sturdy and reliable the frame and chassis was, and how comfortable the truck is for long hauls, now […]


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