Rislone Diesel DEF Treatment additive 6-Pack — 6×8 oz bottles, prevents urea crystal buildup & protects SCR pumps

Left unchecked, crystallized urea deposits in the Selective Catalytic Reduction (SCR) system can restrict flow, foul pumps and sensors, and lead to costly repairs and downtime. Rislone's DEF Treatment is formulated to be dosed into DEF/AdBlue fluid at refill so the fluid stays stable and components like pumps, heaters, senders, lines, injectors and mixers remain free-moving. This listing is for a six-pack of 8‑ounce bottles, sized for multiple treatments across light vehicles, trucks and equipment.

How does Rislone DEF Treatment help my vehicle's SCR system?

Rislone’s formula works to reduce the formation of urea crystals inside DEF storage and delivery components. By treating the DEF at each refill you maintain consistent fluid characteristics and reduce the risk of plug-ups that can impair system function.

• Prevents white crystalline buildup in tanks, lines, and injectors.
• Helps keep DEF pumps, heaters, and sensors operating smoothly.
• Compatible with all UREA-based AdBlue/DEF fluids.
• Simple pour-in dosing at each DEF refill.

What is the correct dosing schedule for different vehicles and equipment?

Dosage varies by vehicle size and equipment capacity; follow the recommended amounts to avoid over- or under-treatment. Measure and add the specified volume directly into the DEF tank or into the DEF container when refilling.

• Cars and small SUVs: 2 ounces per refill.
• Light trucks and mid-to-large SUVs: 4 ounces per refill.
• Medium and heavy-duty diesel trucks: 8 ounces per refill.
• Equipment: 8 ounces per 10 gallons of DEF; 2.5-gallon cubes require 2 ounces.

Will using this treatment affect my vehicle’s warranty or interact with diesel fuel?

Rislone DEF Treatment is designed for use only with UREA-based DEF/AdBlue fluids and is formulated to be safe for modern SCR systems. Do not add this product to diesel fuel; adding it to the diesel tank is incorrect and unnecessary.

• Works with all UREA AdBlue/DEF formulations.
• Intended only for DEF/AdBlue tanks—never add to diesel fuel.
• Formulated to avoid voiding manufacturer warranties when used as directed.

How often should I use Rislone DEF Treatment and where is it most beneficial?

Use the product at every DEF refill for continuous protection. Vehicles that are driven frequently at low speeds, with short trips, or under low load tend to benefit most because those conditions can encourage deposit formation.

• Add at every DEF refill for proactive protection.
• Particularly useful for stop-and-go fleets, short-trip diesel vehicles, and slow-operating equipment.
• Sold here as a convenient six-pack of 8 oz bottles for multiple service intervals.

Who is this for? Rislone Diesel DEF Treatment is aimed at diesel owners and fleet managers who want to reduce the risk of SCR system blockages and avoid expensive repairs. It suits passenger cars, SUVs, light and heavy trucks, agricultural machinery and industrial equipment that use UREA-based DEF/AdBlue. Follow dosage instructions carefully, always add to DEF fluid only, and keep a bottle on hand when refilling to maintain reliable exhaust aftertreatment performance.