---
product_id: 604274243
title: "Rislone 4780-6PK Diesel DEF Treatment | Prevents AdBlue/DEF Fluid Crystallization, 8 oz (Pack of 6)"
brand: "rislone"
price: "₨63709"
currency: LKR
in_stock: true
reviews_count: 8
category: "Rislone"
url: https://www.desertcart.lk/products/604274243-rislone-4780-6pk-diesel-def-treatment-prevents-adblue-def-fluid
store_origin: LK
region: Sri Lanka
---

# Easy 'dump & go' application Prevents DEF crystallization Protects SCR system components Rislone 4780-6PK Diesel DEF Treatment | Prevents AdBlue/DEF Fluid Crystallization, 8 oz (Pack of 6)

**Brand:** rislone
**Price:** ₨63709
**Availability:** ✅ In Stock

## Summary

> 🛠️ DEFend your diesel — the smart shield against SCR system breakdowns!

## Quick Answers

- **What is this?** Rislone 4780-6PK Diesel DEF Treatment | Prevents AdBlue/DEF Fluid Crystallization, 8 oz (Pack of 6) by rislone
- **How much does it cost?** ₨63709 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/604274243-rislone-4780-6pk-diesel-def-treatment-prevents-adblue-def-fluid)

## Best For

- rislone enthusiasts

## Why This Product

- Trusted rislone brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Full-System Defense:** Shields your tank, pump, injector, and lines from damaging deposits for peak performance.
- • **Warranty-Safe Formula:** Works with all UREA AdBlue fluids without voiding your vehicle’s manufacturer warranty.
- • **Effortless Maintenance:** One simple dose with every DEF refill—no tools, no hassle, just reliable protection.
- • **Crystal Clear Protection:** Stops costly DEF crystallization before it starts, saving you thousands in repairs.
- • **Optimized for Real-World Driving:** Ideal for short trips, stop-and-go traffic, and extreme climates where DEF issues thrive.

## Overview

Rislone 4780-6PK Diesel DEF Treatment is a scientifically formulated additive that prevents harmful crystallization in diesel exhaust fluid systems. Designed for every DEF refill, it protects critical SCR components like the tank, pump, and injector from costly damage caused by white crystalline deposits. Easy to use and compatible with all UREA AdBlue fluids, this treatment is essential for diesel vehicles prone to short trips or extreme climates, ensuring optimal engine performance and avoiding expensive repairs.

## Description

Accumulation of harmful white crystalline deposits within the Selective Catalytic Reduction (SCR) Diesel Exhaust Fluid (DEF) system can lead to expensive repairs. It is important to take all possible measures to prevent their formation. Beyond the financial burden, these deposits can reduce engine performance, increase fuel consumption, and potentially render the vehicle or machinery inoperative. RISLONE® DIESEL DEF TREATMENT is an anti- crystallization solution that is used every time filling the DEF / AdBlue® tank. INSTRUCTIONS: Measure required amount per dosage chart below and pour directly into DEF tank or into DEF bottle / cube when refilling tank. Light Truck or Mid-Size to Large SUV—4 ounces; Car or Small SUV—2 ounces; Medium and Heavy Duty Diesel Trucks—8 ounces Equipment & Machinery—8 ounces per every 10 gallons; Cube (2-1/2 gallon)—2 ounces. Only add to DEF or AdBlue Fluid, do not add to diesel fuel.

Review: Solves a Modern Diesel Problem Before It Even Starts - The Ultimate DEF System Insurance Policy for Any Diesel Owner** **★★★★★ Solves a Modern Diesel Problem Before It Even Starts** As an owner of a modern diesel pickup, I was well aware of the looming nightmare of Selective Catalytic Reduction (SCR) system problems. Stories of clogged injectors, crystallized DEF, and four-figure repair bills are enough to keep any diesel owner awake at night. I started using Rislone 4780 DEF Treatment as a proactive measure, and it has provided an incredible sense of security. This isn't a magic potion; it's a scientifically formulated preventative maintenance product that genuinely works. **How It Works: Simple Science, Profound Results** DEF (Diesel Exhaust Fluid) is crucial for reducing emissions, but it has a major weakness: it can crystallize, especially in the precise injector nozzle of the SCR system. Rislone 4780 addresses this directly. * **Prevents Crystallization:** The treatment works by lowering the crystallization temperature of the DEF solution. This is critical during key-off cycles when residual DEF is sitting in the hot injector. By preventing the formation of solid crystals, it ensures the injector nozzle stays clear and fully functional. * **Cleans and Lubricates:** It doesn't just prevent future issues; it contains cleaning agents that help dissolve existing crystalline deposits and lubricates the DEF pump and injector. This dual-action approach (prevention + cleaning) is what makes it so effective. * **Protects Critical Components:** By keeping the entire DEF delivery system—from the tank and pump to the injector and lines—free of deposits, it protects some of the most expensive and sensitive components in your exhaust system. **Real-World Performance and Ease of Use** Using this product couldn't be simpler and integrates seamlessly into normal maintenance. * **Easy "Dump and Go" Application:** Before filling your DEF tank, you simply pour the entire 64-ounce bottle of Rislone 4780 in first. Then, you add your standard DEF fluid as you normally would. The two mix automatically in the tank. That's it. No tools, no complicated steps. * **One Bottle per DEF Tank Fill:** The dosage is perfectly calculated for a full tank of DEF, making it foolproof. I use it with every single DEF fill-up, treating it as a non-negotiable part of my fueling routine. * **Tangible Peace of Mind:** Since I started using it over 10,000 miles ago, I have had zero DEF-related warning lights or performance issues. The system runs cleanly and efficiently. For the price of one bottle per fill, I am effectively insuring my truck against repairs that can easily cost $2,000 - $4,000. **Who Needs This the Most?** This product is invaluable for: * **Short-Trip Drivers:** Vehicles that don't regularly get up to full operating temperature are more prone to DEF crystallization. This is a must-have. * **Extreme Climate Users:** Both cold winters and hot, dry summers can exacerbate DEF issues. This treatment provides a wider margin of safety. * **Any Diesel Owner Who Wants to Avoid Costly Repairs:** This is the cheapest and easiest form of preventative maintenance you can perform for your SCR system. **The Final Verdict** Rislone 4780 DEF Treatment is an absolutely essential product for the modern diesel era. It's a small, smart investment that protects against disproportionately large repair bills. **Who is this for?** * Every owner of a diesel vehicle with an SCR system (2010 and newer for most pickups). * Drivers who primarily take short trips. * Anyone looking to maximize the longevity and reliability of their diesel engine. * Fleet managers wanting to reduce downtime and maintenance costs. **Who should look elsewhere?** * Owners of gasoline vehicles or older diesels without DEF systems. **Final Thought:** Don't wait for a check engine light and a crippling repair estimate. Incorporating Rislone 4780 into your regular maintenance is one of the smartest decisions you can make for your diesel truck's health and your wallet. **It’s a professional-grade, easy-to-use solution that delivers genuine peace of mind. Highly recommended without reservation.**
Review: Buy some for your DEF. - Great product. I can trust this to keep urea fron clogging system. Will stop crystallization.

## Features

- RISLONE DIESEL DEF TREATMENT is an anti- crystallization solution that is used every time filling the DEF / AdBlue tank.
- Improves diesel exhaust fluid and avoids costly SCR / DEF system repairs; protects the tank, pump, heater, sender, lines, injector and mixer.
- Regular use every time refilling the DEF / AdBlue tank works to prevent the white crystallization deposits from occurring.
- Works with all UREA AdBlue DEF diesel exhaust fluids and will not void manufacturer’s new vehicle warranty.
- Excellent for diesel vehicles driven regularly at slow speeds, low loads, short durations or make frequent stops as these are more prone to having the problem of crystallization deposit build up in the SCR system.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CRSWQC6Z |
| Best Sellers Rank | #4,983 in Automotive ( See Top 100 in Automotive ) #17 in Diesel Additives |
| Brand | Rislone |
| Customer Reviews | 4.6 4.6 out of 5 stars (421) |
| Date First Available | January 8, 2024 |
| Item Weight | 3.96 pounds |
| Item model number | 4780-6PK |
| Manufacturer | Bar's Products |
| Manufacturer Part Number | 4780-6PK |
| Model | DEF Treatment |
| Package Dimensions | 10.2 x 6.85 x 4.02 inches |

## Images

![Rislone 4780-6PK Diesel DEF Treatment | Prevents AdBlue/DEF Fluid Crystallization, 8 oz (Pack of 6) - Image 1](https://m.media-amazon.com/images/I/81Rk9FAWpFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solves a Modern Diesel Problem Before It Even Starts
*by J***O on October 10, 2025*

The Ultimate DEF System Insurance Policy for Any Diesel Owner** **★★★★★ Solves a Modern Diesel Problem Before It Even Starts** As an owner of a modern diesel pickup, I was well aware of the looming nightmare of Selective Catalytic Reduction (SCR) system problems. Stories of clogged injectors, crystallized DEF, and four-figure repair bills are enough to keep any diesel owner awake at night. I started using Rislone 4780 DEF Treatment as a proactive measure, and it has provided an incredible sense of security. This isn't a magic potion; it's a scientifically formulated preventative maintenance product that genuinely works. **How It Works: Simple Science, Profound Results** DEF (Diesel Exhaust Fluid) is crucial for reducing emissions, but it has a major weakness: it can crystallize, especially in the precise injector nozzle of the SCR system. Rislone 4780 addresses this directly. * **Prevents Crystallization:** The treatment works by lowering the crystallization temperature of the DEF solution. This is critical during key-off cycles when residual DEF is sitting in the hot injector. By preventing the formation of solid crystals, it ensures the injector nozzle stays clear and fully functional. * **Cleans and Lubricates:** It doesn't just prevent future issues; it contains cleaning agents that help dissolve existing crystalline deposits and lubricates the DEF pump and injector. This dual-action approach (prevention + cleaning) is what makes it so effective. * **Protects Critical Components:** By keeping the entire DEF delivery system—from the tank and pump to the injector and lines—free of deposits, it protects some of the most expensive and sensitive components in your exhaust system. **Real-World Performance and Ease of Use** Using this product couldn't be simpler and integrates seamlessly into normal maintenance. * **Easy "Dump and Go" Application:** Before filling your DEF tank, you simply pour the entire 64-ounce bottle of Rislone 4780 in first. Then, you add your standard DEF fluid as you normally would. The two mix automatically in the tank. That's it. No tools, no complicated steps. * **One Bottle per DEF Tank Fill:** The dosage is perfectly calculated for a full tank of DEF, making it foolproof. I use it with every single DEF fill-up, treating it as a non-negotiable part of my fueling routine. * **Tangible Peace of Mind:** Since I started using it over 10,000 miles ago, I have had zero DEF-related warning lights or performance issues. The system runs cleanly and efficiently. For the price of one bottle per fill, I am effectively insuring my truck against repairs that can easily cost $2,000 - $4,000. **Who Needs This the Most?** This product is invaluable for: * **Short-Trip Drivers:** Vehicles that don't regularly get up to full operating temperature are more prone to DEF crystallization. This is a must-have. * **Extreme Climate Users:** Both cold winters and hot, dry summers can exacerbate DEF issues. This treatment provides a wider margin of safety. * **Any Diesel Owner Who Wants to Avoid Costly Repairs:** This is the cheapest and easiest form of preventative maintenance you can perform for your SCR system. **The Final Verdict** Rislone 4780 DEF Treatment is an absolutely essential product for the modern diesel era. It's a small, smart investment that protects against disproportionately large repair bills. **Who is this for?** * Every owner of a diesel vehicle with an SCR system (2010 and newer for most pickups). * Drivers who primarily take short trips. * Anyone looking to maximize the longevity and reliability of their diesel engine. * Fleet managers wanting to reduce downtime and maintenance costs. **Who should look elsewhere?** * Owners of gasoline vehicles or older diesels without DEF systems. **Final Thought:** Don't wait for a check engine light and a crippling repair estimate. Incorporating Rislone 4780 into your regular maintenance is one of the smartest decisions you can make for your diesel truck's health and your wallet. **It’s a professional-grade, easy-to-use solution that delivers genuine peace of mind. Highly recommended without reservation.**

### ⭐⭐⭐⭐⭐ Buy some for your DEF.
*by S***E on December 31, 2025*

Great product. I can trust this to keep urea fron clogging system. Will stop crystallization.

### ⭐⭐⭐⭐⭐ DEF Cleaner is working great for my 6.7 Powerstroke
*by T***O on January 4, 2026*

My mechanic told me to use this stuff in my 6.7 Power stroke to keep my DEF sensors clean

## Frequently Bought Together

- Rislone Diesel DEF Treatment, 8 oz (Pack of 6)
- Rislone DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner, 11.8 oz
- Rislone® DPF Clean™ Diesel DPF, Exhaust & Emissions System Cleaner, 16.9 oz, 4-Pack

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-28*