New Rislone 'DEF Crystal Clean' Clears P20EE Codes

New Rislone ‘DEF Crystal Clean’ Clears P20EE Codes

The product scrubs away crystal contaminants from the selective catalytic reduction systems of diesel cars, trucks and SUVs.

Rislone introduces DEF Crystal Clean Diesel DEF & SCR Emissions System Cleaner. The product scrubs away crystal contaminants from the selective catalytic reduction (SCR) systems of diesel cars, trucks, and SUVs.

Rislone DEF Crystal Clean dissolves crystal deposits throughout the entire SCR system, including the tank, pump, heater, sender, lines, injector, decomposition tube/reactor and mixer. It clears P20EE and related OBD codes and restores SCR function.

Modern diesel vehicles are equipped with SCR systems to reduce exhaust pollutants and meet stringent diesel emissions standards. These systems inject diesel exhaust fluid (DEF) into the exhaust gas to convert harmful nitrogen oxides (NOx) into nitrogen and water. 

Like any vehicle system, the SCR functions best with proper maintenance, according to Rislone. DEF can break down and evaporate, leaving behind white crystal deposits. As these crystals build up, they clog SCR system components, interfering with normal operation, increasing fuel consumption, and reducing engine power. This can cause the vehicle to operate in “limp mode,” where it drives slowly or not at all.

Rislone says its new DEF Crystal Clean (p/n 4784) is a proprietary blend of cleaning agents and surfactant detergents specifically designed to safely and effectively clean SCR systems in vehicles of all sizes. Regular use every 5,000 miles keeps the system clean, helps prevent new crystals from forming, and improves emissions components’ life, Rislone said.

Diesel vehicles that are regularly driven at low speeds, with light loads, for short durations, or that make frequent stops are especially prone to developing white crystal deposits in their SCR systems. 

“In Europe and other parts of the world where many passenger vehicles run on diesel fuel, SCR maintenance is more familiar and routine than in North America,” says Clay Parks, Rislone vice president of development. “But many diesel vehicles here have reached an age where SCR malfunctions are increasingly plaguing owners. We dedicated years of research to develop an effective solution to help our customers avoid costly SCR repair bills.” 

You May Also Like

Needs Come First When Choosing Aftermarket Or OE

It’s essential to understand the differing needs of manufacturers, shops, technicians, and consumers.

When it comes to replacement suspension parts are OE parts necessarily superior to the aftermarket offerings? In shops all over the country the debate rages. Which side of the argument do you fall?

In the realm of replacement suspension parts, the battle between OEM and aftermarket options rages on. Each side champions its own virtues, leaving consumers and technicians to ponder which route to take.

Service Opportunities Still Exist With EVs

Like all ICE vehicles, you need the correct tools, parts and to follow the proper service procedures when servicing EVs. This video is sponsored by The Group Training Academy.

Wheel Bearing Shortcuts

When you’re installing a wheel speed sensor on a hub unit, never ever remove it from the original unit. Sponsored by Auto Value and Bumper to Bumper.

Maverick Tire Changer: Handling Large Custom Wheels

Large, custom 4×4 wheels are all the rage, and Hunter’s Maverick tire changer makes handling them a breeze.

Introduction to the Maverick Tire Changer

Joe Keene speaks with Hunter Engineering service rep Rick Marzen on Hunter’s premium center-clamp Maverick tire changer.

Other Posts

Schaeffler and Sustainability with Jerry Conroy

Conroy shares insights into his career trajectory, the evolving landscape of the company’s aftermarket operations, and more with Bill.

Flushing the Brake Fluid is Critical on Every Brake Repair

Making sure the brake fluid is the correct quality is critical. Sponsored by Auto Value and Bumper to Bumper.

Selecting the Right Oil for your Customers Engine

Learn how to educate customers on the importance of OEM specifications and premium lubrication for their vehicles’ maintenance needs.

At the Intersection of Tradition and Innovation with Grace Hovis

Grace Hovis’s journey in Hovis Auto & Truck Supply blends tradition with digital innovation in the automotive aftermarket industry.