BlueDEF

BlueDEF Diesel Exhaust Fluid (2.5 gal.)

|1,298 ratings
Item # 531500
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Columbus, 43215
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Highlights

  • Non-toxic; non-flammable; non-polluting
  • For diesel SCR engines
  • New nozzle makes pouring easy
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Sponsored
bluedef diesel exhaust fluid (2.5 gal.) Boxed 2.5-gallon BlueDEF diesel exhaust fluid with white packaging, prominent blue 'Blue DEF' logo and water-drop icon, green 'Guaranteed Pure' band, ISO-22241 certification badge and visible pour nozzle; for diesel SCR engines and often used to top off DEF tanks during service.
BlueDEF Diesel Exhaust Fluid (2.5 gal.)
Hero image 0 of BlueDEF Diesel Exhaust Fluid (2.5 gal.), 0 of 5

About this item

Product details

Driving to a cleaner environment. Peak BlueDEF is a quality product made from High Purity Synthetic Automotive Grade Urea and Deionized Water. BlueDEF is stable, colorless, non-flammable and non-toxic. It's classified as minimum risk for transportation. BlueDEF conforms to the ISO-22241-1 specification for DEF, is API registered and meets or exceeds OEM specifications.

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Member ratings & reviews

4.8 out of 5 stars
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1,298 ratings504 reviews
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  1. 5 stars89% (1,160)
  2. 4 stars6% (74)
  3. 3 stars2% (21)
  4. 2 stars1% (7)
  5. 1 star3% (36)
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Showing 1-3 of 504 reviews

Nov 6, 2024
Reviewer name: TwoPointEight Duramax LWN
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Wow! GRAPE!

Great price and fresh dates.

Helpful?1JBVD4G0ZA077480403211
Aug 3, 2026
Reviewer name: KC
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Walmart has it in store!

All of our tractors require def fluid so when I realized Walmart sold the brand I was go to Home Depot to get I pick it up when I do my household shopping. One less stop and they always have it on the shelves.

Review from walmart.com
Helpful?1JBVD4G0ZA077480403211
Feb 16, 2026
Reviewer name: Henry
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

the blue Def works great Walmart carries it and it is about the cheapest place if I have to buy it in any other store it is double the price and if I cannot find the blue DEF I am forced to use no name brands and I have nothing but problems check engine light comes on I will get a 75 mi to 15 mile an hour see dealer immediately as soon as I put the blue d e f back in all my problems go away.

Review from walmart.com
Helpful?1JBVD4G0ZA077480403211

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