---
product_id: 164887389
title: "Friction Reducer FR3 8 oz 2-PK – Treats 10 Quarts of Oil – Synthetic Oil Additive, Reduces Friction, Protects Engine, Improves Performance and Fuel Economy for Gas & Diesel Engines"
brand: "hot shot's secret"
price: "€ 52.96"
currency: EUR
in_stock: true
url: https://www.desertcart.hr/products/164887389-friction-reducer-fr3-8-oz-2-pk-treats-10-quarts
store_origin: HR
region: Croatia
---

# up to 5% fuel economy boost reduces engine noise 100% synthetic oil additive Friction Reducer FR3 8 oz 2-PK – Treats 10 Quarts of Oil – Synthetic Oil Additive, Reduces Friction, Protects Engine, Improves Performance and Fuel Economy for Gas & Diesel Engines

**Brand:** hot shot's secret
**Price:** € 52.96
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock peak engine performance and fuel savings—because your ride deserves the best!

## Quick Answers

- **What is this?** Friction Reducer FR3 8 oz 2-PK – Treats 10 Quarts of Oil – Synthetic Oil Additive, Reduces Friction, Protects Engine, Improves Performance and Fuel Economy for Gas & Diesel Engines by hot shot's secret
- **How much does it cost?** € 52.96 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/164887389-friction-reducer-fr3-8-oz-2-pk-treats-10-quarts)

## Best For

- hot shot's secret enthusiasts

## Why This Product

- Trusted hot shot's secret brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Silent Power:** Diminishes lifter and valve noise for a smoother, quieter ride.
- • **Fuel Efficiency Upgrade:** Boost your mileage by up to 5%—because every drop counts.
- • **Universal Compatibility:** Works seamlessly with both gas and diesel engines, synthetic or conventional oils.
- • **Engine Armor in a Bottle:** Advanced synthetic formula reduces friction and wear for longer engine life.
- • **Simple, Smart Maintenance:** Easy dosing with 1.5 oz per quart—engine care made effortless.

## Overview

Hot Shot's Secret FR3 is a cutting-edge 100% synthetic oil additive designed to reduce engine friction and wear, enhancing performance and extending engine life. Compatible with gas and diesel engines as well as synthetic and conventional oils, it boosts fuel economy by up to 5% while reducing engine noise for a smoother drive. Easy to use and essential for proactive vehicle maintenance.

## Description

Sponsored Ad - Friction Reducer FR3 8oz. Synthetic Oil Additive Protects Engine & Improves Performance, Friction Modifier for Gas & Deisel Engines Increases Fuel Economy (2 Pack)

## Features

- PROTECTS ENGINES: This advanced 100% synthetic oil additive is designed to enhance gas & diesel engine protection and optimize performance. Formulated to reduce friction and wear, it ensures smoother operation and extends engine life.
- IMPROVES FUEL ECONOMY: The FR3 Friction Reducer is an advanced oil additive designed to enhance engine performance by reducing friction, resulting in an increase in horsepower and fuel economy by up to 5 percent.
- GAS & DIESEL: This versatile product is designed for use in both diesel & gas engines, ensuring compatibility with a wide range of vehicles. It effectively functions with both synthetic & conventional oil, providing optimal performance and protection.
- REDUCES NOISE: Diminishes lifter & valve noise while effectively restoring lost compression in your engine. This additive ensures optimal functionality & a quieter driving experience, making it essential to your vehicle maintenance routine.
- EASY TO USE: Use 1.5 ounces per quart of oil. FR3 displaces the same amount of oil. Do not use it in combination with Stiction Eliminator and other aftermarket oil additives. Use Stiction Eliminator to deep clean the engine and protect it with FR3.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Lubrication Specialties, Inc |
| Brand | Hot Shot's Secret |
| Model | Special_79 |
| Item Weight | 1.5 ounces |
| Package Dimensions | 10.28 x 9.84 x 5.67 inches |
| Item model number | Special_79 |
| Manufacturer Part Number | Special_79 |

## Product Details

- **Material:** Plastic
- **Brand:** Hot Shot's Secret
- **Package Information:** Bottle
- **Liquid Volume:** 16 Fluid Ounces
- **Item Weight:** 1.5 Ounces

## Images

![Friction Reducer FR3 8 oz 2-PK – Treats 10 Quarts of Oil – Synthetic Oil Additive, Reduces Friction, Protects Engine, Improves Performance and Fuel Economy for Gas & Diesel Engines - Image 1](https://m.media-amazon.com/images/I/711xh0Sld-L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Can this be used with full synthetic Mobil 1 oil?**
A: I use it with mobil 1

**Q: Why not aircraft?**
A: FR3 is a friction modifier.  I don't see why it could not be used in aircraft if the 1.5 oz. per quart ratio is followed.   I have personally used the 1 oz per quart ratio with no adverse effects.   ***I would  never exceed the recommended ratio provided by manufacturer ***

**Q: Can you mix the stiction eliminator with the fr3?**
A: From what I can find on the manufacturer's site, use stiction first. Then use the fr3 with the next oil change.

**Q: Can i use the stiction eliminator first then add this the next oil change?**
A: Yes you can. I put it in my engine half way thru the oil change then at the next one.

## Frequently Bought Together

- Hot Shot's Secret Friction Reducer FR3 8oz. Synthetic Oil Additive Protects Engine & Improves Performance, Friction Modifier for Gas & Deisel Engines Increases Fuel Economy (2 Pack)
- ‎Hot Shot's Secret Gasoline Extreme 12 Oz, Concentrated Fuel System Cleaner, Fuel Additive for Gasoline Engines, Injector Cleaner - Increases MPG & Restores Engine Performance
- Hot Shot's Secret Original Stiction Eliminator 32 Fluid Ounce Bottle

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**Shop now:** [https://www.desertcart.hr/products/164887389-friction-reducer-fr3-8-oz-2-pk-treats-10-quarts](https://www.desertcart.hr/products/164887389-friction-reducer-fr3-8-oz-2-pk-treats-10-quarts)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-05*