Hot Shot's Secret Oil Additive - FR3 Friction Reducer - 32 oz. bottle

Thoroughbred Sku #: HSSFR332Z
Manufacturer Sku #: FR332Z

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Shipping Restrictions:
This part is NOT available to ship to the states of Alaska or Hawaii.


Product Details

Product Name: Hot Shot's Secret Oil Additive - FR3 Friction Reducer - 32 oz. bottle
Manufacturer: Hot Shot's Secret
Manufacture Part #: FR332Z
Thoroughbred Diesel Part #: HSSFR332Z
Fitment Notes: Diesel Additive

OIL ADDITIVE - 100% Synthetic Friction Reducer with 3 Patented Technologies

Heat and friction silently steal power from your engine. The scientists from LSI Institute have uncovered a powerful lubricity agent…Hot Shot’s Secret FR3. One treatment of FR3 to your oil and your engine will run cooler and have increased towing power. Negatively charged synthetic ester tenaciously attaches to all internal parts completely lubricating your engine. Recommended for ALL gas & diesel engines. NOT for use in automatic transmission fluid.

Hot Shot's Secret Oil Additive - FR3 Friction Reducer Features:
  • Increase fuel economy up to 5%
  • Reduction in oil operating temperature
  • Reduces engine wear up to 43%
  • Improves oil’s oxidative stability
  • Restores lost compression
  • Reduces lifter & valve noise

How to Use:

5 quart (car): 8 ounces FR3
15 quarts (truck): 23 ounces FR3
45 quarts (semi): 64 ounces FR3

Add To:
Engine oil
Power steering
Hydraulic system

Recommended Frequency:
Use one treatment of FR3 every oil change.

Use in All Engines:
Semi-trucks, pick-up trucks, farm equipment & autos. Effective in all engines including: Ford Powerstroke, Dodge Cummins, GM Duramax, Saab, Volkswagen, Audi. You can use FR3 to treat any oil-lubricated system except air conditioning and aircraft. Even though FR3 is an industrial product, you'll find that small two-cycle engines love it; just add FR3 to your oil before mixing it with the fuel. Your automobile, light truck or other personal vehicles will benefit from FR3 in the engine, power steering unit, and differential.

The Science:

Hot Shot’s Secret FR3 is a lubricity enhancing oil additive that increases the lubricating & wear reduction properties of the host oil. The product contains patented synthetic lubricants that have unique lubricating properties even compared to PAO or mPAO synthetics of the same viscosity. The anti-wear component of the formula is a patented carbon nano particle that fills in microscopic irregularities on the machined surface to provide a smoother surface for the lubricating film to form. The synergy of these components extends the base oil performance in shear stability, oxidation stability, film strength & especially friction reduction.

Dyno Testing: FR3 Friction Reducer with Firepunk Diesel

"How do your additives compare to the industry leading oil additives?"

  • Two 6.7L Cummins were tested; Competitor-X vs. FR3.
  • Competitor-X gained up to 1% horsepower, while FR3 increased horsepower up to 5%.


  • Will FR3 work in my 4 stroke marine out board motor Will it work in the lower unit gear case.

    Jeff | 9/24/2021

    Yes, not in the lower unit.