❄️ Keep your diesel running crystal clear — no more costly surprises!
Rislone 4780 Diesel DEF Treatment is an 8 oz anti-crystallization additive designed to prevent white deposits in diesel exhaust fluid (DEF) systems. Compatible with all UREA AdBlue fluids, it protects critical SCR components like the tank, pump, heater, and injectors, reducing repair costs and maintaining vehicle warranty. Perfect for diesel vehicles frequently driven at low speeds or with stop-and-go patterns.
| Manufacturer | Bar's Products |
| Brand | Rislone |
| Model | DEF Treatment |
| Item Weight | 10 ounces |
| Package Dimensions | 6.26 x 3.58 x 1.57 inches |
| Country of Origin | USA |
| Item model number | 4780 |
| Manufacturer Part Number | 4780 |
P**O
Used after the initial DEF product, this one seems to have things working well
I used their initial product in DEF tank since I had been geting P20EE codes regularly. I could see crystalization around pour tube, cap, etc. I put it in, then I got the dreaded Poor DEF Quality message and P20EE code again. Then it went away. A few miles later, back again. Then after a few days. maybe 75-80 miles, no more codes.Took a long trip of 650 miles, plus local driving, code and DEF message have never appeared again. Seems to do the trick. I also add in this Rislone maintenance DEF fluid product. Seems to all be working as intended.
R**N
Must have DEF additive
Must have for your DEF fill tank. Couldn't believe how fast the white, crystal buildup disappeared. Can only image the gains inside the DEF tank. Will continue to buy and use this product.
B**C
Excellent Diesel DEF Treatment – Works Like a Charm!
I’ve been using Rislone Diesel DEF Treatment for a while now, and it’s an absolute must-have for anyone who wants to keep their diesel engine running smoothly.Pros:Improved Performance: I noticed a significant improvement in my vehicle’s overall performance and efficiency after using this treatment. It keeps the DEF system clean and functioning optimally.Reduces Crystallization: It effectively prevents DEF crystallization, which is a huge plus, especially for long-term maintenance.Easy to Use: The instructions are straightforward, and the bottle is designed for no-mess pouring.Cost-Effective: For the results it delivers, this product is an excellent value. It saves money in the long run by preventing costly repairs.Compatibility: It works perfectly with my diesel truck and meets all DEF system requirements.Cons:None at all! It does exactly what it promises.Whether you're a daily driver or managing a fleet, Rislone Diesel DEF Treatment is a smart choice to ensure optimal engine performance and longevity. Highly recommended! 🚛💪
O**Z
Thanks
I don’t know if it helps or not. Truck is still running good
J**E
Great product
Works great for helping clean out your DEF system. Helped clean out the pump.
J**E
Does not work
Don't use this stuff if you know what good for you. it started causing issues with my nox sensor and I've own the truck for 8 months never had a issues with my def system till I used this product. After I used it the system started to create gases and every time I put DEF in the tank I started to see bubbles come out of the tank as if some one had put soap in the system. This issues started to happen after I used this product.
A**R
Does what it says it does
Excellent, does what it says it does, and I’ve seen how the DEF fluid does white powdery substance even on caps of new DEF fluid in stores! Recommendations for all diesel vehicles!Will buy again!
A**M
Worked on BMW def cleaner
My 2014 BMW had wrong Dec fluid sign in the dash board. Even though I have been using the same fluid for years. I had 50 miles left on it before car was going to shut off. I put this fluid in it half of this container I let it sit for 6 hours. After that I cranked the car the the light in the dashboard went away. It has worked for me I love it
TrustPilot
1天前
4天前
