---
product_id: 679482938
title: "Rislone Diesel DEF Treatment, 8 oz (Pack of 6)"
brand: "rislone"
price: "$399"
currency: NZD
in_stock: true
reviews_count: 5
category: "Rislone"
url: https://www.desertcart.nz/products/679482938-rislone-diesel-def-treatment-8-oz-pack-of-6
store_origin: NZ
region: New Zealand
---

# Use every DEF refill Protects SCR system components Anti-crystallization formula Rislone Diesel DEF Treatment, 8 oz (Pack of 6)

**Brand:** rislone
**Price:** $399
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep your diesel running smooth—because costly repairs are so last season!

## Quick Answers

- **What is this?** Rislone Diesel DEF Treatment, 8 oz (Pack of 6) by rislone
- **How much does it cost?** $399 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/679482938-rislone-diesel-def-treatment-8-oz-pack-of-6)

## 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

- • **Universal Compatibility:** Works seamlessly with all UREA AdBlue DEF fluids without voiding your vehicle’s warranty.
- • **Shield Your Diesel Engine:** Prevents costly SCR and DEF system repairs by stopping white crystalline deposits before they form.
- • **Simple Routine Maintenance:** Just add the recommended dose every time you refill your DEF tank to maintain peak engine performance.
- • **Comprehensive System Protection:** Safeguards tank, pump, heater, sender, lines, injector, and mixer for long-term durability.
- • **Optimized for Real-World Driving:** Ideal for diesel vehicles with frequent stops, low loads, or short trips—where crystallization risk is highest.

## Overview

Rislone Diesel DEF Treatment is a specialized anti-crystallization additive designed to be used with every DEF/AdBlue refill. It prevents harmful white crystalline deposits in the SCR system, protecting critical components like the tank, pump, and injector. Compatible with all UREA AdBlue fluids and safe for new vehicles, it’s especially effective for diesel engines frequently driven at low speeds or with frequent stops, helping maintain engine efficiency and avoid 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: I think it's working not sure but truck runs a little better
Review: Good product. Used on my 2015 F350, but I cannot really tell if this has helped or bot. Time will tell.

## 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 |
| Brand | Rislone |
| Customer Reviews | 4.4 4.4 out of 5 stars (53) |
| Date First Available | 3 November 2024 |
| Item Weight | 1.8 Kilograms |
| Item model number | 4780-6PK |
| Manufacturer | Bar's Products |
| Manufacturer Part Number | 4780-6PK |
| Model | DEF Treatment |
| Package Dimensions | 25.91 x 17.4 x 10.21 cm; 1.8 kg |

## Images

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

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by T***E on 13 January 2026*

I think it's working not sure but truck runs a little better

### ⭐⭐⭐ Review
*by H***B on 6 December 2025*

Good product. Used on my 2015 F350, but I cannot really tell if this has helped or bot. Time will tell.

### ⭐ Review
*by C***A on 13 December 2025*

Used this product in late Aug early September, truck has 83k miles and has had new def tank at 40k. Almost instantly started having issues. Sensor after sensor, then def injector, tank cleaning and def fluid replaced seems to have cured the issue. I use my LML Duramax lightly and thought this would be a helpful solution…turns out I either had too much contamination already and this loosened it all up/sent it through and clogged everything or the product itself caused the issues Thousands later I’m 100 miles without fail safe mode threats from the dash after 3 months in of repairs

## 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 New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-26*