---
product_id: 692659021
title: "Rislone DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner, 11.8 oz"
brand: "rislone"
price: "RM294"
currency: MYR
in_stock: true
url: https://www.desertcart.com.my/products/692659021-rislone-def-crystal-clean-diesel-def-and-scr-emissions-system
store_origin: MY
region: Malaysia
---

# Use every 5,000 miles SCR system safe formula 11.8 oz precision dosing Rislone DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner, 11.8 oz

**Brand:** rislone
**Price:** RM294
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep your diesel running clean, lean, and mean—before your ride falls behind.

## Quick Answers

- **What is this?** Rislone DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner, 11.8 oz by rislone
- **How much does it cost?** RM294 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/692659021-rislone-def-crystal-clean-diesel-def-and-scr-emissions-system)

## 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

- • **Crystal Clear Performance:** Dissolves white crystallization deposits that throttle your diesel’s power and efficiency.
- • **Warranty-Friendly Formula:** Keeps your emissions system clean without risking your manufacturer’s new vehicle warranty.
- • **Engineered for Every Diesel:** Compatible with all major DEF fluids and SCR systems including BlueTEC, PowerStroke, and Cummins.
- • **Simple, Targeted Application:** Add directly to the DEF tank (blue cap only) for hassle-free maintenance and sustained engine health.
- • **Optimized for Real-World Driving:** Perfect for diesel vehicles facing slow speeds, frequent stops, and short trips—where buildup is worst.

## Overview

Rislone DEF Crystal Clean™ is a specialized 11.8 oz cleaner designed to dissolve harmful crystallization deposits in diesel SCR emissions systems. Safe for all DEF fluids and major diesel brands, it prevents power loss and limp mode by maintaining optimal SCR function. Regular use every 5,000 miles ensures peak engine performance without voiding warranties, making it essential for diesel vehicles frequently driven in stop-and-go or low-load conditions.

## Description

RISLONE® DEF CRYSTAL CLEANTM Diesel DEF & SCR Emissions System Cleaner is a propriety blend of DEF (Diesel Exhaust Fluid) / AdBlue® compatible cleaning agents and surfactant detergents specifically designed to be safe to use and work on SCR (Selective Catalyst Reduction) systems. DEF Crystal Clean gives a cleaning effect on the entire SCR system by working to dissolve the white crystal deposits that form in the tank, pump, heater, sender, lines, injector, decomposition tube / reactor and mixer. These deposits can interfere with the normal operation of the SCR emissions system and engine, increasing fuel consumption and reducing engine power. This reduced power can lead to operating in limp mode where the vehicle will drive slowly, or become undrivable. This process restores function and with regular use maintains efficiency of the SCR. DO NOT ADD TO DIESEL FUEL TANK. INSTRUCTIONS: DEF Crystal Clean is specifically designed to only be installed in the Diesel Exhaust Fluid / AdBlue tank which usually has a blue cap. Do not add to the diesel fuel tank. * Light Truck or Mid-Size to Large SUV - 5 to 9 gallon tank capacity install full bottle into DEF tank. *Car or Small SUV - 3 to 5 gallon tank capacity use approximately 1/2 bottle. *Medium and Heavy Duty Diesel Trucks - 10 to 20 gallon tank capacity use 2 bottles. Pour DEF Crystal Clean into mostly full DEF tank or add and fill tank with diesel exhaust fluid. If light is still on after 250 miles or a few days of driving, second application may be required, or mechanical attention is needed. NOTE: Works with all approved diesel exhaust fluids. Some vehicles use a special filling adapter to install DEF / AdBlue into the tank. For those vehicles use special funnel or pour into mostly empty DEF / AdBlue bottle and install in system.

## Features

- 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.
- Regular use every 5,000 miles not only keeps the system clean, but works to prevent the white crystallization issues from returning.
- Will not void manufacturer’s new vehicle warranty. Specifically designed and safe to use on vehicles which have DOC catalytic converters, DPF particulate filters, SCR selective catalytic reduction devices, ASC ammonia slip catalyst or DEF / AdBlue systems.
- Works with all AdBlue, Aria 32 (Automotive Nitrogen Oxide Liquid Reducing Agent), AUS 32 (Aqueous Urea Solution), BlueHDi, BlueTEC, Cummins, DEF UREA, Duramax, EcoDiesel, PowerStroke, TDI Clean Diesel, and many more.
- DEF Crystal Clean is specifically designed to only be installed in the Diesel Exhaust Fluid / AdBlue tank which usually has a blue cap. Do not add to the diesel fuel tank.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Bar's Products |
| Brand | Rislone |
| Model | Diesel DEF & SCR Emissions |
| Package Dimensions | 22.91 x 7.01 x 6.91 cm; 431 g |
| Item model number | 4784 |
| Manufacturer Part Number | 4784 |
| Special Features | Automotive |
| Item Weight | 431 g |

## Images

![Rislone DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner, 11.8 oz - Image 1](https://m.media-amazon.com/images/I/71hRUzjYRyL.jpg)

## Available Options

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

## Frequently Bought Together

- Rislone 4784 DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner, 11.8 oz
- Rislone 4780 Diesel DEF Treatment | Prevents AdBlue/DEF Fluid Crystallization, 8 oz
- Rislone® 4744 DPF Clean™ Diesel DPF, Exhaust & Emissions System Cleaner, 16.9 oz, 1-Pack

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*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-01-27*