---
product_id: 184741431
title: "In-Season Protection Fuel System Treatment | Full Protection Fuel System Cleaner, Injector Cleaner, Increases MPG, Prevents Corrosion, 8 Fl. Oz."
brand: "sta-bil"
price: "€ 13.89"
currency: EUR
in_stock: true
reviews_count: 13
category: "Sta Bil"
url: https://www.desertcart.fi/products/184741431-in-season-protection-fuel-system-treatment-full-protection-fuel-system
store_origin: FI
region: Finland
---

# Cleans entire fuel system Boosts MPG & engine power Industry-leading corrosion protection In-Season Protection Fuel System Treatment | Full Protection Fuel System Cleaner, Injector Cleaner, Increases MPG, Prevents Corrosion, 8 Fl. Oz.

**Brand:** sta-bil
**Price:** € 13.89
**Availability:** ✅ In Stock

## Summary

> ⛽ Power up your ride with cleaner fuel and longer engine life!

## Quick Answers

- **What is this?** In-Season Protection Fuel System Treatment | Full Protection Fuel System Cleaner, Injector Cleaner, Increases MPG, Prevents Corrosion, 8 Fl. Oz. by sta-bil
- **How much does it cost?** € 13.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/184741431-in-season-protection-fuel-system-treatment-full-protection-fuel-system)

## Best For

- sta-bil enthusiasts

## Why This Product

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

## Key Features

- • **Easy Pour & Go:** Just 1 oz per 5 gallons—simple, no-fuss maintenance
- • **Rust & Corrosion Armor:** Protects internal fuel parts from damaging rust year-round
- • **Fuel Efficiency Maximizer:** Optimizes combustion to increase miles per gallon and power
- • **Complete Fuel System Detox:** Removes water, gum & varnish for peak engine health
- • **Year-Round Engine Guardian:** Pairs perfectly with storage stabilizers for ultimate fuel care

## Overview

STA-BIL In-Season Protection is an 8 fl. oz. fuel system treatment that cleans fuel injectors, lines, and pumps by removing water, gum, and varnish. It provides industry-leading corrosion protection, boosts fuel economy and engine power, and stabilizes fuel for in-season use. Easy to use with 1 oz per 5 gallons, it ensures optimal performance and longevity of your vehicle’s fuel system all year long.

## Description

Buy STA-BIL In-Season Protection Fuel System Treatment | Full Protection Fuel System Cleaner, Injector Cleaner, Increases MPG, Prevents Corrosion, 8 Fl. Oz.: Fuel Additives - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great product - I have used this product in my car for years. Works great. Also, prefer adding my own additive. That way I know the additive is in there.
Review: Pure Gold, Pun Intended - Been using this stuff for years. While you may be tempted to think it is snake oil, my fuel system is squeaky clean, I have virtually no carbon fouling, no corrosion and I am still running on the original fuel pump and injectors in my Stage 1, 25 year old Jetta VR6 and have zero fuel leaks. Fuel filters last longer and it takes much longer for the fuel to start losing octane. Helps maximize power and fuel economy. Noticed a difference to both when I started using the fuel treatment about a decade ago. I also use it in my motorcycles, garden equipment and my 2 stroke powered sport plane, where I also noticed a reduction in carbon fouling, increase in power and reduced fuel burn rate. Sta-Bil + fully synthetic 2 stroke oil is a power combo for getting the most out of any 2 stroke motor. Worries about fouling and seizing become a thing of the past. Longevity goes up dramatically. There is a noticeable increase in power. I calculated that my 65HP motor on my plane makes around 75HP at takeoff power with this combo. That's a 15% increase over standard oil and no Sta-Bil, nothing to scoff at. I have verified multiple times it does indeed keep fuel good for a year. I don't use the Storage version anymore because the in season is good enough for me since I live in the desert and don't need the extra corrosion inhibitors. But if you live somewhere humid and, especially if you live near the ocean, you should use the Storage version for anything that isn't going to run for more than 3 months. Keep in mind the storage product doesn't just protect the fuel system. It also helps to protect your cylinders, valves, rings and exhaust system internally by depositing persistent corrosion inhibitors and has way more of the stuff than the in season. This is why you always want to drive the vehicle a bit after you put the treatment in, before you put it in storage. Plugging the intake and exhaust will help the corrosion inhibitors persist longer. Best of all, Sta-bil products are very affordable.

## Features

- FUEL SYSTEM CLEANER: Cleanses the entire fuel system, including fuel injectors, lines, & fuel pumps, this formula removes water, gum, & varnish, ensuring optimal performance & longevity of your fuel system while preventing corrosion
- CORROSION PROTECTION: Industry-leading rust and corrosion protection for all internal fuel system parts.
- MPG BOOSTER: Designed to optimize fuel performance which contributes to enhanced gas mileage & improved engine power. This advanced formula cleans & protects the fuel system, allowing for efficient combustion & prolonged engine life
- DIRECTIONS: New name, same formula as our 360* Protection. Pour directly into fuel tank prior to fill up. Use 1 oz for every 5 gallons of fuel.
- YEAR-ROUND PROTECTION: Pair STA-BIL In-Season Protection with STA-BIL Storage, providing a complete solution for both in-season operation & storage needs during the winter ensuring that your equipment remains in peak condition year-round.
- FUEL STABILIZER: Stabilizes fuel in-season for gasoline sitting in collector cars, gas cans, etc. For specific storage needs, use our storage fuel stabilizer product

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00KY7NUJM |
| Best Sellers Rank | #4,304 in Automotive ( See Top 100 in Automotive ) #12 in Fuel Additives |
| Brand | STA-BIL |
| Customer Reviews | 4.8 4.8 out of 5 stars (6,547) |
| Date First Available | June 12, 2014 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8.3 ounces |
| Item model number | 22288 |
| Manufacturer | Gold Eagle Co. |
| Manufacturer Part Number | 22288 |
| Model | 8oz 360 Protection Ethanol Treatment |
| Product Dimensions | 1.75 x 3.75 x 7.5 inches |
| Special Features | CORROSION PROTECTION: Industry-leading rust and corrosion protection for all internal fuel system parts., DIRECTIONS: Pour directly into fuel tank prior to fill up. Use 1 oz for every 5 gallons of fuel., FUEL STABILIZER: Stabilizes fuel in-season for gasoline sitting in collector cars, gas cans, etc. For specific storage needs, use our storage fuel stabilizer product., FUEL SYSTEM CLEANER: Cleanse… |

## Images

![In-Season Protection Fuel System Treatment | Full Protection Fuel System Cleaner, Injector Cleaner, Increases MPG, Prevents Corrosion, 8 Fl. Oz. - Image 1](https://m.media-amazon.com/images/I/61VlE2g+BDL.jpg)

## Questions & Answers

**Q: I typically use non-ethanol gas in my small engines.  Will this product give me any benefit?**
A: It will prolong the "Freshness of the gas either way "

**Q: what is the difference between this product, Stable 22275 360 and Stable 22284 360?  22284 has less product and costs more.**
A: Good question.  If you go to the manufactures site, goldeagle dot com, you won't find the 22284 product, just the 22264 product.

**Q: Can be this used in 2004 Lexus ES330, general gas not ethanol fuel.**
A: Uh..  general gas for vehicle has ethanol.  Only fuel you find without ethanol is on some boat gas station for boats and maybe some race track gas station.  I doubt you are in either category.  So yea, your fuel has ethanol and this will helps it if you don't drive it often.  If you drive it and gas gets depleted in a week, then this doesnt do much.  You maybe just want some fuel cleaner like the Chevron Bottle to keep your fuel injectors clean instead.

**Q: Can this be used in the gas for a Mercury 90 outboard motor ?**
A: Absolutely. It can be used on any gasoline engine. It works on non-ethanol and 2-cycle fuel as well.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by T***R on December 17, 2025*

I have used this product in my car for years. Works great. Also, prefer adding my own additive. That way I know the additive is in there.

### ⭐⭐⭐⭐⭐ Pure Gold, Pun Intended
*by M***W on May 15, 2025*

Been using this stuff for years. While you may be tempted to think it is snake oil, my fuel system is squeaky clean, I have virtually no carbon fouling, no corrosion and I am still running on the original fuel pump and injectors in my Stage 1, 25 year old Jetta VR6 and have zero fuel leaks. Fuel filters last longer and it takes much longer for the fuel to start losing octane. Helps maximize power and fuel economy. Noticed a difference to both when I started using the fuel treatment about a decade ago. I also use it in my motorcycles, garden equipment and my 2 stroke powered sport plane, where I also noticed a reduction in carbon fouling, increase in power and reduced fuel burn rate. Sta-Bil + fully synthetic 2 stroke oil is a power combo for getting the most out of any 2 stroke motor. Worries about fouling and seizing become a thing of the past. Longevity goes up dramatically. There is a noticeable increase in power. I calculated that my 65HP motor on my plane makes around 75HP at takeoff power with this combo. That's a 15% increase over standard oil and no Sta-Bil, nothing to scoff at. I have verified multiple times it does indeed keep fuel good for a year. I don't use the Storage version anymore because the in season is good enough for me since I live in the desert and don't need the extra corrosion inhibitors. But if you live somewhere humid and, especially if you live near the ocean, you should use the Storage version for anything that isn't going to run for more than 3 months. Keep in mind the storage product doesn't just protect the fuel system. It also helps to protect your cylinders, valves, rings and exhaust system internally by depositing persistent corrosion inhibitors and has way more of the stuff than the in season. This is why you always want to drive the vehicle a bit after you put the treatment in, before you put it in storage. Plugging the intake and exhaust will help the corrosion inhibitors persist longer. Best of all, Sta-bil products are very affordable.

### ⭐⭐⭐⭐⭐ My Engine's New Best Friend—STA-BIL 360 is a Game Changer! ⛽💪
*by D***K on July 9, 2025*

I was tired of my small engines sputtering and stalling after sitting idle for a season. That's when I tried STA-BIL 360 Protection Ethanol Treatment & Fuel Stabilizer. After adding it to my fuel, I noticed smoother starts and better throttle response. My mower, snowblower, and even my boat engine ran like new. It's like giving my equipment a fresh start every time. Plus, it keeps fuel fresh for up to 12 months, so I don't have to worry about old gas causing problems. If you're looking to protect your engines and improve performance, STA-BIL 360 is a must-have! 🙌🛠️

## Frequently Bought Together

- STA-BIL In-Season Protection Fuel System Treatment | Full Protection Fuel System Cleaner, Injector Cleaner, Increases MPG, Prevents Corrosion, 8 Fl. Oz.
- STA-BIL Storage Fuel Stabilizer | Keeps Fuel Fresh for 24 Months, Prevents Corrosion, Gasoline Treatment Additive that Protects System, Gas Stabilizer for Storage, 8 oz.
- STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough Running Engines, Eliminates Water, Treats Up to 20 Gallons, 8oz (22304) , Green

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-02*