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NuDEF

NüDEF Diesel Exhaust Fluid Anti-Crystal Treatment - Treats 25 Gallons - DEF Additive & Stabilizer

    • Based on 104 reviews
Condition: New
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$19.99 Why this price?
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Availability: In Stock.
Fulfilled by NuDEF
Arrives Friday, May 2
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Number of Items: 1


Features

  • Helps prevent DEF crystallization
  • Lowers freezing point of DEF
  • Protects SCR system DEF tank, pump & injector
  • Treats up to 25 gallons of DEF

Manufacturer: ‎NuDEF


Brand: ‎NuDEF


Model: ‎NuDEF


Item Weight: ‎10.2 ounces


Product Dimensions: ‎2 x 2 x 6.5 inches


Item model number: ‎


Manufacturer Part Number: ‎


Date First Available: June 3, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 2

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great product
Number of Items: 1
Worked great on our DEF system that sat a year in our MB camper.
Reviewed in the United States on March 4, 2025 by mwebber78
    • HUGE help with my DEF System
Number of Items: 1
I've been frustrated with my truck's DEF system for some time now...It seems that DEF fluid is wildly unstable (something they really don't tell you when buying a truck) and as a result, I've experienced my share of DEF system failures. Even when adding DEF fluid as recommended, the volatility of DEF fluid creates a seemingly perfect environment for DEF systems to fail when driving a diesel-powered truck like mine. A friend suggested I try using NuDEF...I was skeptical but figured I had nothing to lose. The dreaded DEF system light had returned again and before making yet another trip to my local dealership to once again be charged a fortune for a repair, I tried it. Wow! After mixing in NuDEF with my DEF fluid and driving for a short period of time, my DEF system light went off and my truck seemed to be a bit...happier! It's now been a few weeks and I have yet to see the DEF system light return and my truck has been performing perfectly. Thanks, NuDEF...You DEFinitely (see what I did there) have a customer for life! ... show more
Reviewed in the United States on August 13, 2024 by DLS
    • No freezing or crystallization
Number of Items: 1
It works … I guess ! All I know is I have no crystallization or freezing of the DEF and I live at 7000 ft in the Eastern Sierra where the temperature gets down in the low teens .
Reviewed in the United States on April 2, 2025 by Mark S. Goergen
    • Preventive maintenance
Number of Items: 1
3 of my DEF truck systems have had some sort of failures. I was always worried that DEF would dry out flake and plug up the system. Hoping this product keeps my units trouble free
Reviewed in the United States on March 16, 2025 by Denis C Gegg
    • Si funciona lento
Number of Items: 1
Que el efecto es pausado, pero si la marcha del motor a mejora
Reviewed in the United States on April 3, 2025 by Mario Roberto Trujillo
    • It’s an additive for def fluid
Number of Items: 1
I got this for the stupid def fluid in my diesel. I don’t drive it in the winter because i like it and we use a ton of salt here. I dunno if it works I’ve started it a few times no issues only time will really tell.
Reviewed in the United States on February 5, 2025 by Thomas P.
    • Don't use
Number of Items: 1
I added this to my def system big mistake it messed up the hole system and now its costing me $3,800 to fix it
Reviewed in the United States on January 9, 2025 by Marco Chavez
    • I really cannot tell any difference.
Number of Items: 1
This might work or this might not? I followed the directions and honestly I can’t tell any difference yet. I’ll give it a honest try until the bottle empty and then I’ll make my final decision.
Reviewed in the United States on January 22, 2025 by T. L. HARMON

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