DEF Fluid 2.5 Gallon Ultra Pure Heavy Duty

Keep your diesel engine running efficiently and compliant with emissions standards using this Prime Guard UltraPure Diesel Exhaust Fluid (DEF), designed for SCR-equipped trucks and equipment.

✔ 2.5-gallon container with easy-pour nozzle
✔ Ultra-pure DEF for reliable SCR system performance
✔ Helps reduce harmful NOx emissions
✔ Improves engine efficiency and reduces maintenance issues
✔ Meets ISO 22241, AUS32, and DIN 70070 standards
✔ Compatible with all diesel engines using DEF systems

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💪 WHY DRIVERS USE DEF

• Required for modern diesel engines with SCR systems
• Helps reduce emissions and meet EPA regulations
• Prevents engine derating and warning codes
• Keeps your truck running at full performance

Diesel exhaust fluid works by converting harmful nitrogen oxides into harmless nitrogen and water, helping protect both your engine and the environment. (Geotab)

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⚙️ PRODUCT SPECIFICATIONS

• Type: Diesel Exhaust Fluid (DEF)
• Size: 2.5 Gallons
• Composition: 32.5% urea / 67.5% deionized water (Geotab)
• Purity: UltraPure (formaldehyde-free)
• Standards: ISO 22241 / AUS32 / DIN 70070 (okindustrial.com)
• Application: SCR diesel engines

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🚛 PERFECT FOR

• Semi-trucks and diesel pickups
• Fleet vehicles
• Construction and heavy equipment
• Any DEF-equipped diesel engine

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⚠️ IMPORTANT NOTE

DEF is NOT a fuel or fuel additive.
It is used in a separate DEF tank and must be kept clean and uncontaminated for proper system operation.

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💰 SAVE MORE WITH BULK ORDERS

• Ideal for fleets and frequent use
• Multiple containers recommended

👉 Contact us for bulk pricing

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📦 FAST SHIPPING FROM ILLINOIS

• Same-day shipping available
• Easy-to-use container with nozzle
• Built for everyday professional use

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👉 Order now and keep your diesel engine running clean, efficient, and compliant.