PRI-D 32 oz Diesel Fuel Stabilizer

PRI-D 32 oz Diesel & Kerosene Fuel Stabilizer

Professional-Grade Fuel Protection for Storage, Equipment & Emergency Preparedness

The PRI-D 32 oz diesel fuel stabilizer is formulated to protect stored diesel and kerosene from oxidation, sludge formation, and fuel breakdown. Designed for Ultra-Low Sulfur Diesel (ULSD) and biodiesel blends, this concentrated formula works at the molecular level to help maintain fuel stability during extended storage.

Ideal for homeowners, generator owners, boaters, farmers, and equipment operators, the 32 oz bottle treats up to 512 gallons of fuel, making it a cost-effective solution for seasonal or emergency fuel storage.

Why Use PRI-D for Stored Diesel?

Diesel fuel naturally degrades over time. Without treatment, stored fuel can experience:

• Oxidation and darkening
• Sludge buildup
• Filter plugging
• Hard-starting engines
• Reduced combustion efficiency
• Increased smoke

PRI-D helps slow this degradation process, supporting long-term fuel stability and dependable engine performance when equipment is returned to service.

Designed for Modern ULSD Fuel Systems

Today’s ULSD fuel has lower natural lubricity than older diesel blends. PRI-D helps support fuel system protection by:

• Promoting cleaner combustion
• Supporting injector cleanliness
• Helping maintain fuel pump efficiency
• Stabilizing biodiesel blends

The formula contains no cetane boosters and does not alter fuel specifications.

Ideal Applications

• Standby and portable generators
• Diesel trucks and RVs
• Marine diesel engines
• Agricultural equipment
• Construction machinery
• Kerosene heaters and lamps
• Emergency preparedness fuel reserves

Whether preparing for storm season, storing fuel between harvests, or maintaining backup power systems, PRI-D helps protect your fuel investment.

Product Details

• Size: 32 oz bottle
• Treatment Ratio: 1 oz treats 16 gallons
• Total Treatment Capacity: Up to 512 gallons
• Application: Add directly to fuel before storage or during refueling
• Made in the USA
• Manufacturer: Power Research Inc.

For larger fuel tanks or commercial storage systems, consider upgrading to the gallon size or the gallon 6 pack for expanded treatment capacity.

Frequently Asked Questions

How much fuel does the 32-oz bottle treat?
Up to 512 gallons at the standard treatment ratio.

Is PRI-D safe for biodiesel blends?
Yes. It is compatible with ULSD and biodiesel blends.

Can it be used in generators?
Yes. PRI-D is widely used for standby and emergency generator fuel storage.

Protect your diesel and kerosene before degradation begins. Add PRI-D 32 oz diesel fuel stabilizer to your storage program today.

PRI-D 32 oz 2 Pack diesel fuel stabilizer is perfect for small tanks, seasonal equipment, and backup generators. Treat up to 1,024 gallons of diesel or kerosene with this twin pack. For larger fuel storage, check our PRI-D Gallon container, or for fleets and municipalities, see high-volume stabilization with the 6 Pack.

Learn more about the PRI brand and what the letters in PRI-D mean on our What Does PRI-D Stand For? page. For other sizes and the full PRI-D product line, visit our PRI Fuel Stabilizer category