PRI Diesel Treatment 16 oz — Concentrated Fuel Stabilizer & Injector Cleaner for Storage

PRI CP113 PRI-D Diesel Treatment is a concentrated fuel additive that preserves stored diesel and restores aged fuel to near-refinery condition while improving combustion and reducing emissions.

PRI-D is a high-strength diesel treatment in a 16-ounce bottle designed to protect and enhance diesel fuel whether it's used daily or maintained in long-term storage. Formulated for modern diesel blends, this treatment stabilizes fuel, helps prevent carbon and varnish buildup, and supports smoother engine operation. The concentrated formula treats many gallons per bottle, making it a practical choice for vehicle owners, marine users, RVers, and anyone who stores fuel for seasonal or backup use.

How does PRI-D help with fuel storage and stability?

PRI-D slows chemical degradation in stored diesel so fuel stays usable for much longer than untreated fuel. Regular annual treatment preserves fuel quality and minimizes varnish and sediment that can clog filters and injectors.

• Treats stored diesel to keep it near-refinery quality for years
• Prevents formation of gums and sediment that cause fuel-system fouling
• Rejuvenates marginal or aged fuel to improve start reliability

What performance improvements can I expect in my diesel engine?

When used as directed, PRI-D improves the combustion process, helping engines run cleaner and more efficiently. Users typically see better throttle response and reduced hesitation under load.

• Improves power output for smoother acceleration
• Enhances fuel economy by optimizing combustion efficiency
• Helps cut hydrocarbons and NOx emissions for cleaner exhaust

Will PRI-D reduce maintenance and fuel-system deposits?

PRI-D contains refinery-grade chemistry formulated to limit deposit formation that shortens component life. By reducing carbon buildup and keeping injectors cleaner, it helps extend intervals between service events.

• Inhibits carbon and varnish accumulation on fuel-system parts
• Reduces the need for frequent injector and carburetor cleaning
• Helps maintain consistent engine performance and longevity

How much fuel does one 16 oz bottle treat and how should I use it?

Each 16-ounce bottle of PRI-D treats up to 256 gallons of diesel when added at the recommended dosage. Add the product to fuel before storage or pour directly into the tank during refueling for immediate protection and conditioning.

• 16-ounce bottle treats up to 256 gallons of diesel
• Suitable for both two-stroke and four-stroke engines and all diesel blends
• Use annually for storage protection or with each fill for ongoing treatment

Who is this product for: PRI CP113 PRI-D is aimed at owners of diesel cars, trucks, boats, RVs, farm equipment, and standby generators who want reliable starts, reduced emissions, and longer-lasting fuel systems. It is especially useful for seasonal equipment and backup generators where fuel can sit for extended periods. If you need a concentrated, refinery-grade fuel conditioner to maintain fuel quality and support engine performance, this PRI treatment offers a cost-effective solution.