Rislone Diesel DPF Clean Exhaust & Emission Cleaner, 4-Pack — Concentrated soot and carbon remover

Rislone's DPF CLEAN blends strong detergents and heavy-duty solvents formulated for diesel engines to break down and remove the deposits that accumulate through normal use, poor fuel, short trips and other stressors. Safe for modern diesel aftertreatment systems, each bottle is dosed into the fuel tank to circulate active agents through injectors, combustion chambers, the turbocharger, EGR, catalytic devices and the diesel particulate filter. Regular use supports cleaner operation and can reduce the frequency of forced regenerations and maintenance interruptions.

How does this product help diesel engines perform better?

The formula targets the carbon, soot and oily residues that cling to injectors, DPF cores and exhaust passages, improving combustion efficiency and restoring lost power. By cleaning these surfaces, the engine breathes and burns fuel more effectively, which can improve responsiveness and fuel economy when combined with proper maintenance.

• Breaks down soot and carbon deposits in combustion and exhaust systems
• Helps restore injector spray patterns and turbocharger efficiency
• Reduces excess exhaust regeneration events and related fuel use

Will using this cleaner affect my vehicle’s warranty or emissions equipment?

Rislone DPF CLEAN is formulated to be compatible with modern emissions hardware and is safe for vehicles equipped with DOC, DPF, SCR and DEF systems. The product is designed not to void new vehicle warranties when used as directed, but always follow manufacturer recommendations and service schedules.

• Safe with DOC catalytic converters and DPF particulate filters
• Compatible with SCR/DEF systems and common diesel engine types
• Designed for use with ULSD and common biodiesel blends

How do I use the treatment and how often should I apply it?

For light-duty diesels (up to 40 gallons), add a full bottle to a partially filled tank—about one-quarter full for trucks/SUVs or half full for smaller cars—then drive 20–30 miles. For larger tanks follow the labeled dosing: 1.5 bottles for 40–80 gallons, and 2 bottles for tanks above 81 gallons.

• Drive after treatment to circulate chemicals through the engine and exhaust
• Repeat if heavily contaminated DPF triggers regeneration or CEL codes
• Use regularly (approx. every 5,000 miles) to maintain system cleanliness

What problems can this product help prevent or clear?

By removing build-up across fuel and exhaust pathways, the cleaner can reduce symptoms associated with clogged systems, such as loss of fuel economy, reduced power, rough starts and excessive regeneration cycles. It can also help clear certain OBD codes related to particulate buildup when used as directed.

• Helps address soot-related drivability and performance issues
• Can reduce frequency of forced DPF regenerations and long-term wear
• May clear codes like P242F when deposits are the underlying cause

Who is this for: Rislone 4744-4PK DPF Clean is aimed at diesel vehicle owners and fleet managers who want to maintain emission-control hardware and fuel-system health without premature component replacement. It’s suitable for light-, medium- and heavy-duty diesel engines, including common-rail, direct- and indirect-injection systems, turbocharged engines, and vehicles using ULSD or approved biodiesel blends. Use it as part of a regular maintenance routine to support cleaner combustion, fewer interruptions from regeneration events, and steadier engine performance.

Note: Follow the product instructions and your vehicle manufacturer’s service recommendations. For persistent emissions warnings or mechanical faults, consult a qualified diesel technician.