(1 customer review)

Case of 12 16oz bottles



 Case of 12 16oz bottles




PRI-D is a super concentrated, complete fuel treatment that improves all diesel fuels, including ultra low sulfur diesel (ULSD), providing maximum fuel performance. PRI-D’s industrial strength, enhanced thermal stability chemistry reacts with fuel upon contact, providing multiple benefits:

• Engines perform better and last longer
• Fuel lubricity is enhanced for reduced wear
• Power is increased and fuel economy realized
• Fuel stays fresh and ready to use
• Degraded fuels are restored to freshness
• Tanks and fuel lines remain free of slime and sludge
• Smoke opacity is dramatically reduced

Maximum Lubricity Protection – The refinery-grade lubricity additive package of PRI-D is the most effective and safest available today based on extensive oil industry research, field performance experience, and HFRR lubricity testing. Fuel pump wear is reduced as much as 45 percent with ULSD fuels. Costly and unsafe catastrophic pump failures are avoided.

Improved Engine Performance – PRI-D works chemically within diesel fuel to improve the combustion process. Improved combustion means improved engine performance. Realize increased power from your engine and greater fuel economy. PRI-D is also extremely effective at reducing harmful emissions and visible smoke. PRI-D performance has been verified in the EPA heavy duty diesel test protocol.

Reduced Maintenance Costs – PRI-D is a highly effective preventative maintenance tool. The proprietary, refinery-grade chemistry of PRI-D is unsurpassed at preventing carbon deposits and fuel system fouling. Your engine will remain cleaner and last longer. In addition, the tank slime and sludge that diesel fuel users commonly encounter is eliminated!

Keeps Fuels At Peak Stability – PRI-D not only prevents fuel degradation in long-term storage, degraded fuels are restored to refinery freshness. PRI-D is especially effective in providing the enhanced thermal stability that modern hydrotreated distillate fuels lack. PRI-D capability is repeatedly confirmed in independently conducted ASTM D2274 testing.

Super Concentrated – PRI-D is super concentrated, with a dosage rate of 1:2,000. This means PRI-D is extremely cost effective to use. Get the most out of your diesel fuel for only pennies a gallon. PRI-D also has a shelf life of three years. 

Safe To Use – PRI-D contains no potentially damaging cetane improvement additives or harsh solvent chemistries. No fuel specifications are changed, therefore PRI-D meets all major engine manufacturer fuel specifications and warranties are not voided Use PRI-D today to get the most out of your diesel fuel and your engine.


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  1. Gerardo Martinez

    This is a “Must Have Product” I actually have 250 gal of diesel treated with PRI-D for 2 years and 50 extra gal in my generator tank the diesel is clear and clean as the first day I bough it plus my generator start and works as a “charm” Strongly recommend this product for diesel users, don”t waste your money in other products THIS IS THE ONE!!!! it worths every penny…….

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