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The LUBRICATION SPECIALTIES INC DEFA8Z is a diesel exhaust fluid (DEF) additive formulated to clean and prevent DEF crystal buildup within selective catalytic reduction (SCR) systems. White crystalline deposits form over time in the injector, sending unit, and DEF tank, degrading SCR performance and increasing fuel consumption. This triple-filtered, ash-free and dye-free formula is designed to restore system performance and protect critical DEF handling components. It is intended for use by diesel technicians and fleet maintenance professionals servicing light-duty and heavy-duty diesel equipment that relies on SCR emissions control systems.
This additive is used at each DEF refill interval to prevent deposit formation before it starts. It is suited for any diesel vehicle or equipment equipped with an SCR system, including on-highway trucks, vocational vehicles, and off-road diesel equipment. The ash and dye-free formula is designed to be safe for all SCR system components and is guaranteed not to void the manufacturer's warranty when used as directed. Fleet managers and diesel service technicians will find this a straightforward preventive maintenance product for keeping SCR systems operating within specification.
Designed for use in diesel vehicles and equipment equipped with selective catalytic reduction (SCR) emissions systems that use diesel exhaust fluid.
This product is added directly to the DEF tank at each refill interval by a diesel technician or qualified fleet maintenance professional. Follow the dosing instructions on the product label — do not exceed the recommended treat rate. Avoid contact with painted surfaces, as DEF-based products can cause staining. Store in a cool, dry location away from direct sunlight to maintain product integrity.
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