---
product_id: 16201439
title: "STP Octane Booster for Gasoline Fuel Additive, Restore Lost Power, 5.25 oz | Fuel cleaner for gasoline engines; 5.25 oz bottle treats up to 15 gallons, compatible with cap-less systems"
brand: "stp"
price: "€ 12.77"
currency: EUR
in_stock: true
category: "Stp"
url: https://www.desertcart.gr/products/16201439-stp-octane-booster-for-gasoline-fuel-additive-restore-lost-power
store_origin: GR
region: Greece
---

# Boosts octane for peak engine power Cleans fuel intake system effectively Treats up to 15 gallons per bottle STP Octane Booster for Gasoline Fuel Additive, Restore Lost Power, 5.25 oz | Fuel cleaner for gasoline engines; 5.25 oz bottle treats up to 15 gallons, compatible with cap-less systems

**Brand:** stp
**Price:** € 12.77
**Availability:** ✅ In Stock

## Summary

> ⛽ Ignite your engine’s potential—don’t let power slip away!

## Quick Answers

- **What is this?** STP Octane Booster for Gasoline Fuel Additive, Restore Lost Power, 5.25 oz | Fuel cleaner for gasoline engines; 5.25 oz bottle treats up to 15 gallons, compatible with cap-less systems by stp
- **How much does it cost?** € 12.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/16201439-stp-octane-booster-for-gasoline-fuel-additive-restore-lost-power)

## Best For

- stp enthusiasts

## Why This Product

- Trusted stp brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Use:** No mixing—just pour before refueling and go
- • **Power Up Your Ride:** Restores lost engine performance with every fill-up
- • **Cap-less Compatible:** Works seamlessly with modern fuel systems
- • **Dual-Action Formula:** Boosts octane and cleans fuel system simultaneously
- • **Fuel Efficiency Friend:** Optimizes combustion for smoother, more efficient drives

## Overview

STP Octane Booster is a premium 5.25 oz fuel additive designed to restore lost engine power by boosting octane and cleaning the fuel intake system. Each bottle treats up to 15 gallons of gasoline, is easy to use with no mixing required, and is compatible with cap-less fuel systems, making it a must-have for maintaining peak vehicle performance.

## Description

This two-in-one formula boosts octane and cleans the fuel intake system to restore lost performance.

## Features

- Easy to Use – No Mixing Required: Simply pour the entire bottle into your fuel tank before refueling; one bottle treats up to 15 gallons and is ideal for regular use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004MBFTYK |
| Best Sellers Rank | #9,269 in Automotive ( See Top 100 in Automotive ) #3 in Octane Boosters |
| Brand | STP |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,406) |
| Date First Available | February 4, 2011 |
| Exterior | [[Not Applicable]] |
| Item Weight | 5.5 ounces |
| Item model number | 78574 |
| Manufacturer | STP |
| Manufacturer Part Number | 78574 |
| Model | 78574 |
| Position | Outside |
| Product Dimensions | 1.5 x 2.3 x 8 inches |
| Voltage | 12 volts |

## Images

![STP Octane Booster for Gasoline Fuel Additive, Restore Lost Power, 5.25 oz | Fuel cleaner for gasoline engines; 5.25 oz bottle treats up to 15 gallons, compatible with cap-less systems - Image 1](https://m.media-amazon.com/images/I/71tf-sf7ZzL.jpg)

## Available Options

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

## Questions & Answers

**Q: How many gallons does it treat?**
A: The front of the container states "Treats up to 21 gallons" -- my husband uses this product in our 1965 Mustang, which has a tank size of  16 gallons.  Depending on how often he drives the car and fills the gas tank, he uses 1 bottle with each fill up.    I hope this answers some of your question.

**Q: does this work on a 2 stroke?**
A: Does your 2 stroke recommend a higher octane - 89+ and you can't get the fuel? if so, use it

**Q: Is this safe for use with catalytic converters?**
A: I am using it in a 66 Mustang and a 73 Z28 neither have converters, so not sure

**Q: Will this stuff boost 93 octane to 95?**
A: Yes, I think it is a gain of just under 2.5 octane numbers when added to 12 or 14 gallons.

## Frequently Bought Together

- STP Octane Booster for Gasoline Fuel Additive, 5.25 oz, Fuel Additive That Raises Octane Levels and Cleans the Fuel Intake System to Restore Lost Power and Acceleration, Help Improve MPG
- STP Ultra 5 In 1 Fuel System Cleaner and Stabilizer, Deep Cleans Fuel System and Fights Engine Friction, 12 FlOz
- STP Complete Fuel System Cleaner, Fuel Cleaner Deep Cleans Entire Fuel System, 5.25 Oz, Multicoloured, 1 Count (Pack of 1)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-08-16*