---
product_id: 605736779
title: "4780 Diesel DEF Treatment | Prevents AdBlue/DEF Fluid Crystallization, 8 oz"
brand: "rislone"
price: "113.71 DT"
currency: TND
in_stock: true
category: "Rislone"
url: https://www.desertcart.tn/products/605736779-4780-diesel-def-treatment-prevents-adblue-def-fluid-crystallization-8
store_origin: TN
region: Tunisia
---

# Used every DEF refill for lasting performance Protects SCR system components Prevents DEF crystallization 4780 Diesel DEF Treatment | Prevents AdBlue/DEF Fluid Crystallization, 8 oz

**Brand:** rislone
**Price:** 113.71 DT
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep your diesel running crystal-clear and worry-free!

## Quick Answers

- **What is this?** 4780 Diesel DEF Treatment | Prevents AdBlue/DEF Fluid Crystallization, 8 oz by rislone
- **How much does it cost?** 113.71 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/605736779-4780-diesel-def-treatment-prevents-adblue-def-fluid-crystallization-8)

## 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 tank, pump, heater, sender, lines, injector, and mixer from harmful crystallization buildup.
- • **Warranty-Safe Formula:** Compatible with all UREA AdBlue DEF fluids without voiding your vehicle’s warranty.
- • **Crystal-Clear Protection:** Stops costly white deposits before they start, saving your SCR system from damage.
- • **Simple Routine, Big Savings:** Add every time you refill your DEF tank to maintain peak engine performance and avoid expensive repairs.
- • **Optimized for Real-World Driving:** Ideal for diesel vehicles with frequent stops, low loads, or slow speeds—where crystallization risk is highest.

## Overview

Rislone 4780 Diesel DEF Treatment is an 8 oz anti-crystallization additive designed to prevent white crystalline deposits in diesel SCR systems. Compatible with all UREA AdBlue DEF fluids, it protects critical components like the tank, pump, and injector, reducing costly repairs and maintaining engine efficiency. Recommended for regular use at every DEF refill, especially for vehicles prone to crystallization due to stop-and-go or low-load driving.

## 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.

## 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 | B0CRSNDVHW |
| Best Sellers Rank | #7,227 in Automotive ( See Top 100 in Automotive ) #15 in Diesel Additives |
| Brand | Rislone |
| Customer Reviews | 4.6 4.6 out of 5 stars (514) |
| Date First Available | January 8, 2024 |
| Item Weight | 10 ounces |
| Item model number | 4780 |
| Manufacturer | Bar's Products |
| Manufacturer Part Number | 4780 |
| Model | DEF Treatment |
| Package Dimensions | 6.26 x 3.58 x 1.57 inches |

## Images

![4780 Diesel DEF Treatment | Prevents AdBlue/DEF Fluid Crystallization, 8 oz - Image 1](https://m.media-amazon.com/images/I/61i3F96opbL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- Rislone 4780 Diesel DEF Treatment | Prevents AdBlue/DEF Fluid Crystallization, 8 oz
- Rislone 4784 DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner, 11.8 oz
- Archoil Diesel Fuel System Kit - AR6500 Diesel Treatment (40 oz) + AR6400-D Diesel Fuel System Cleaner

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**Shop now:** [https://www.desertcart.tn/products/605736779-4780-diesel-def-treatment-prevents-adblue-def-fluid-crystallization-8](https://www.desertcart.tn/products/605736779-4780-diesel-def-treatment-prevents-adblue-def-fluid-crystallization-8)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-15*