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.
Rislone DEF Treatment Designed to Keep Diesel Exhaust Fluid Crystal-Free
Rislone is rolling out a super-concentrated version of its Diesel DEF Treatment that is designed to stabilize and improve diesel exhaust fluid.

Rislone Diesel DEF Treatment Super Concentrate works with all urea DEF/ AdBlue® fluids to prevent crystal deposits.
Photo: Rislone
Rislone is rolling out a super-concentrated version of its Diesel DEF Treatment that is designed to stabilize and improve diesel exhaust fluid (DEF). The new product is sized for commercial and governmental fleets as well as agricultural operations.
The new Rislone Diesel DEF Treatment Super Concentrate comes in a 33 oz. bottle capable of treating up to 55 gallons of DEF. A case of six bottles treats one 330-gallon IBC tote.
Ensuring Vehicles Get Extra Diesel DEF Protection
Rislone’s formula was created to improve selective catalytic reduction (SCR) system efficiency, stabilizes diesel exhaust fluid and prevents AdBlue/DEF crystallization. Super Concentrate contains the same ingredients as Rislone’s original DEF Treatment, which is sized for treating a single diesel engine.
Diesel vehicles that are already showing signs of white crystal buildup – such as warning lights coming on, power and fuel efficiency dropping, or being forced into “limp mode” – should first be treated with Rislone DEF Crystal Clean Diesel DEF & SCR Emissions System Cleaner.
Once the system is clean, regular use of Rislone Diesel DEF Treatment Super Concentrate will help keep maintain the system by preventing white crystallization deposits from developing, which protects the entire DEF and SCR system, including tank, pump, heater, sender, lines, injector and mixer.
Rislone Diesel DEF Treatment Super Concentrate works with all urea DEF/ AdBlue fluids to prevent crystal deposits. It will not void manufacturers’ new vehicle warranties. To use, measure the required amount per Rislone’s dosage chart, and pour directly into a DEF drum, tote, pail, cube, or tank.
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