BlueDEF Diesel Exhaust Fluid Synthetic Urea Deionized Water 2.5 Gallon (4 Pack)
BlueDEF Diesel Exhaust Fluid Synthetic Urea Deionized Water 2.5 Gallon (4 Pack)
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BlueDEF Diesel Exhaust Fluid Synthetic Urea Deionized Water 2.5 Gallon (4 Pack)

4.8 stars out of 1142 reviews
(4.8)|
1,142 ratings

Key item features

  • High Purity Mixture: Mixture of 32.5 percent high purity synthetic urea and 67.5 percent deionized water
  • Cleaner Emissions: Helps convert nitrogen oxide into harmless nitrogen gas and water vapor for cleaner emissions
  • Fuel Economy Boost: Improves fuel economy by up to 5 percent
  • Specialized Injection: Inject the fluid into your exhaust stream with a specialized dosing module
  • Stable and Safe: Stable, colorless, odorless, and meets ISO standards 22241 for purity and composition
  • Convenient Packaging: Comes in a 2.5-gallon jug, with a total quantity of 4 jugs
  • Product Specifications: Boiling point: 212 degrees Fahrenheit, Crystallization point: 12 degrees, Specific gravity: 1.09, Water solubility: 100 percent
  • Compact Dimensions: Dimensions (L x W x H): 48 x 40 x 44.75 inches, Weight: 22.75 pounds
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Current price is $99.99
Price when purchased online
  • Free shipping
  • Free 30-day returns

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Columbus, 43215
Arrives by Thu, Feb 12
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Sold and shipped by Heintz Sales
4.479470198675497 stars out of 5, based on 755 seller reviews(4.5)
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Free 30-day returns
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$94.99
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Shipping, arrives by Sat, Feb 14 to Columbus, 43215
Sold and shipped by D-C-O
Free 30-day returns

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Customer ratings & reviews

4.8 out of 5 stars
stars1,142 ratings234 reviews
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Pros
  • : Offers lower prices compared to others.
  • : Made with high-end materials and solid construction.
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Showing 1-3 of 234 reviews

Nov 5, 2025
Robert H
5 out of 5 stars review

Seller Verified Purchase

Reliable and great value!

BlueDEF works exactly as it should—keeps my truck running smooth with no issues. The price at Sam's is hard to beat, and the jug design makes it easy to pour without spills. Always consistent quality.

Review from samsclub.com
Helpful?5GL8L1XB5UHG512263220
Nov 8, 2025
Walmart customer
5 out of 5 stars review

Seller Verified Purchase

DEF

I've been using this kind of DEF in my trucks since 2018 and I've never had a problem I will continue to use it and recommend it. Sam's has the best price for it.

Review from samsclub.com
Helpful?5GL8L1XB5UHG512263220
Jul 20, 2025
Mike
5 out of 5 stars review

Seller Verified Purchase

Easy to use

Very easy to use. Flexible hose is long enough to be placed into the filler tube on the car while keeping the box upright.

Review from samsclub.com
Helpful?5GL8L1XB5UHG512263220