---
product_id: 139791316
title: "Rislone 4747-12PK Super Concentrated Octane Booster, 6. Fluid_Ounces, 12 Pack , yellow"
brand: "bar's leaks"
price: "A$139"
currency: AUD
in_stock: true
reviews_count: 9
category: "Bar's Leaks"
url: https://www.desertcart.com.au/products/139791316-rislone-4747-12pk-super-concentrated-octane-booster-6-fluid-ounces
store_origin: AU
region: Australia
---

# Boosts octane 20+ points Treats up to 20 gallons Stops engine knock & ping Rislone 4747-12PK Super Concentrated Octane Booster, 6. Fluid_Ounces, 12 Pack , yellow

**Brand:** bar's leaks
**Price:** A$139
**Availability:** ✅ In Stock

## Summary

> ⚡ Unleash your engine’s hidden power and leave hesitation in the dust!

## Quick Answers

- **What is this?** Rislone 4747-12PK Super Concentrated Octane Booster, 6. Fluid_Ounces, 12 Pack , yellow by bar's leaks
- **How much does it cost?** A$139 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/139791316-rislone-4747-12pk-super-concentrated-octane-booster-6-fluid-ounces)

## Best For

- bar's leaks enthusiasts

## Why This Product

- Trusted bar's leaks brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Knockout Formula:** Anti-knock tech eliminates engine ping from low-quality fuel
- • **Tank-Ready Design:** Bottle fits all gas tanks including capless & obstructed systems
- • **Power Surge Guaranteed:** Restores lost horsepower for a thrilling drive every time
- • **Engine-Safe Concentration:** Highest legal MMT concentrate without harming catalytic converters
- • **Universal Fuel Compatibility:** Works seamlessly with E10, E15, E85, racing fuel & more

## Overview

Rislone 4747-12PK Super Concentrated Octane Booster is a street-legal, high-performance additive that raises octane by over 20 points, eliminating engine knock and boosting horsepower. Compatible with all unleaded fuels including ethanol blends and racing fuels, it safely enhances power and efficiency without damaging catalytic converters or sensors. Designed for all engine types and gas tanks, this 12-pack ensures your ride performs at its peak, whether on the street or track.

## Description

Rislone Hy-per Fuel Super Concentrated Octane Booster increases octane rating to stop engine hesitation and knock & ping, while also increasing power & performance. Street legal formula works equally well on classic muscle cars, newer smaller harder working engines, off road and racing applications. Increased octane allows the engine to run optimum spark timing which not only creates more power, but in many engines reduces emissions and increases fuel mileage.

Review: It works, works really GOOD - Switched to this booster from Lucas. This is WAY better. My GMC Sierra (6.2L) loved it...huge bump in power. I even put it in my Mazda CX50 Turbo - same deal. More power, engine revs nicely. I run 91 octane (no ethanol) pump gas in both vehicles. I pour in one bottle Rislone after fueling up on a full tank. So, it works on turbo engines and non turbo engines
Review: Great item for gasoline. - Works, as instructions are, can half the doseage and still works well.

## Features

- Restores lost horsepower and performance. Antiknock formulation stops engine knock and pings caused by low quality fuel.
- Typical results boost octane over 20 points or 2 rating numbers. Contains the highest concentrate of real MMT allowed for street use.
- Works with all unleaded gasoline, ethanol E10, E15, E85 and racing fuel. One bottle treats up to 20 gallons of gasoline
- Will not harm catalytic converters or oxygen sensors. Use with all fuel injected, direct injected, GTDI & carbureted street, racing, supercharged and turbo engines.
- Bottle is designed to work in ALL gas tanks including standard, obstructed and capless (no gas cap) systems.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FY313PP |
| Best Sellers Rank | #20,564 in Automotive ( See Top 100 in Automotive ) #6 in Octane Boosters |
| Brand | Bar's Leaks |
| Customer Reviews | 4.7 4.7 out of 5 stars (667) |
| Date First Available | July 26, 2018 |
| Item Weight | 4.77 pounds |
| Item model number | 4747-12PK |
| Manufacturer | Rislone |
| Manufacturer Part Number | 4747-12PK |
| Model | 4747-12PK |
| Product Dimensions | 7 x 6 x 10 inches |

## Images

![Rislone 4747-12PK Super Concentrated Octane Booster, 6. Fluid_Ounces, 12 Pack , yellow - Image 1](https://m.media-amazon.com/images/I/71aSfcAjpML.jpg)

## Questions & Answers

**Q: Is this  safe for Harley motorcycles with 110 engines?**
A: Yes

**Q: What is the shelf life on this?**
A: The shelf life for this product is 3 years. 

If you have any other technical questions, feel free to contact our Technical Service Professionals at 800-345-6572 or if you would prefer you can use the contact us page on our website.

**Q: Can I use this if I want to run 93 ? Mixing it with 91**
A: My Merc needs 93 not available anymore where I live. So I buy by the case and add 1 at every fill of 91. Car fires great and had no issues.

**Q: What does this product boost your octane level to?**
A: 4to5 percent  above pump percent

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works, works really GOOD
*by C***R on December 11, 2025*

Switched to this booster from Lucas. This is WAY better. My GMC Sierra (6.2L) loved it...huge bump in power. I even put it in my Mazda CX50 Turbo - same deal. More power, engine revs nicely. I run 91 octane (no ethanol) pump gas in both vehicles. I pour in one bottle Rislone after fueling up on a full tank. So, it works on turbo engines and non turbo engines

### ⭐⭐⭐⭐⭐ Great item for gasoline.
*by A***R on September 8, 2025*

Works, as instructions are, can half the doseage and still works well.

### ⭐⭐⭐⭐⭐ Rislone Octane Booster
*by R***J on October 15, 2024*

Fast delivery . Thank you! I use this to maintain octane of stored gasoline ⛽️ . Seems to help for a year or more of storage!! Cheap insurance for my fuel investment!!

## Frequently Bought Together

- Rislone 4747-12PK Super Concentrated Octane Booster, 6. Fluid_Ounces, 12 Pack , yellow
- Lucas Oil 10003 Fuel Treatment - 1 Quart
- Gumout 510013W-6PK Fuel System Cleaner, 6 Pack

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-26*