Rislone Diesel DPF Cleaner 1-Pack, Concentrated DPF, Exhaust & Emission Cleaner to Restore Performance

Rislone 4744 DPF Clean® is a concentrated diesel additive formulated to dissolve soot, carbon and oily deposits from the DPF, turbo, EGR, injectors and exhaust system to restore performance and help reduce excess regenerations.

Rislone DPF Clean® combines strong detergents and heavy-duty solvents with reactive agents designed for diesel combustion systems. It targets accumulated inorganic and organic deposits that build up from poor fuel quality, short trips, cold climates and inconsistent maintenance. When used as directed, the formula helps clear trapped soot and residues that can cause loss of power, reduced fuel economy, frequent forced regenerations and diagnostic trouble codes.

How quickly will Rislone DPF Clean® make a difference?

Visible improvement often follows the first treatment, but full effects depend on how clogged the systems are. For many light-duty vehicles you’ll notice reduced soot buildup and smoother operation after a drive cycle following treatment.

• Single 1‑pack dose for light-duty tanks up to 40 gallons.
• Drive 20–30 miles after adding the product for active cleaning.
• Medium/heavy tanks may need 1.5–2 bottles and repeated treatments for severe buildup.

Which diesel systems and engine types is this safe for?

Rislone DPF Clean® was formulated to be compatible with modern diesel emissions hardware and fuel types. It’s safe on DPFs, DOCs, SCR systems and DEF-equipped vehicles when used per directions and won’t void a new vehicle warranty.

• Works with ULSD, off-road diesel, and biodiesel blends (B2, B5, B20).
• Compatible with direct-injection, common-rail, IDI and turbocharged engines.
• Designed for vehicles fitted with misfueling devices and modern catalytic/aftertreatment components.

How do I use Rislone DPF Clean® for best results?

Proper dosing and driving immediately after adding the product are key. Use the full bottle in partially filled tanks as directed to ensure effective mixing and contact with combustion gases and filters.

• Light-duty (≤40 gal): add full bottle to ~1/4 tank for trucks/SUVs or 1/2 tank for cars/smaller SUVs, then drive 20–30 miles.
• Medium/heavy (40–80 gal): use 1.5 bottles; >81 gal: use 2 bottles.
• If severe soot remains or the fault light persists, a second application or mechanical service may be necessary.

What practical benefits can I expect with routine use?

Regular application helps maintain cleaner combustion and exhaust systems, which supports steady fuel economy, fewer forced regenerations and more consistent power. It can also help clear related fault codes that stem from particulate accumulation.

• Helps increase horsepower, throttle response and mileage by removing deposits.
• Reduces the frequency of high-temperature forced regenerations and related downtime.
• Formulated to lower ignition temperature in the DPF to assist passive soot burn-off.

Who is this for: Rislone 4744 DPF Clean® is intended for diesel vehicle owners and fleet managers who want to prevent and reverse particulate and carbon buildup across fuel, combustion and exhaust systems. It’s suitable for drivers of light- to heavy-duty trucks, SUVs and commercial equipment that run on ULSD or approved biodiesel blends and that need a chemical solution to improve DPF performance between mechanical services or regenerations.