---
product_id: 9408228
title: "Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce (4 Pack)"
brand: "red line"
price: "€ 129.74"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/9408228-red-line-60103-si-1-complete-fuel-system-cleaner-cleans
store_origin: SK
region: Slovakia
---

# Boosts fuel stability & efficiency Powerful dual-temp detergents Prevents corrosion & deposits Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce (4 Pack)

**Brand:** red line
**Price:** € 129.74
**Availability:** ✅ In Stock

## Summary

> ⛽ Clean fuel, peak performance—because your engine deserves the best!

## Quick Answers

- **What is this?** Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce (4 Pack) by red line
- **How much does it cost?** € 129.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/9408228-red-line-60103-si-1-complete-fuel-system-cleaner-cleans)

## Best For

- red line enthusiasts

## Why This Product

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

## Key Features

- • **Octane Saver:** Reduces the need for higher octane fuel by up to two points, saving you money
- • **Clean Like a Pro:** Eliminates injector, carburetor & combustion chamber gunk with near 100% efficiency in one treatment
- • **Corrosion Defense:** Advanced formula protects your fuel system from damaging corrosion, extending engine life
- • **Simple & Effective:** One 15 oz bottle treats a full tank—easy maintenance without the hassle
- • **Fuel Efficiency Booster:** Enhances gasoline stability to reduce gum and varnish buildup, optimizing every drop

## Overview

Red Line 60103 SI-1 is a concentrated 15 oz fuel system cleaner (4-pack) designed to clean injectors, carburetors, valves, and combustion chambers while preventing corrosion. It improves fuel stability, reduces gum and varnish buildup, and can lower octane requirements by up to two points, ensuring efficient and protected engine performance.

## Description

Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce (4 Pack)

## Features

- DESIGNED TO EXCEED EXPECTATIONS: Red Line complete SI-1 fuel system cleaner treatment for cleaning and preventing corrosion in fuel systems
- PERFORM AND PROTECT: Fuel additive cleans injectors, carburetors, valve and combustion chamber deposits with a powerful, concentrated blend of high-temp and low-temp detergents
- EFFICIENT FUEL BURN: Gas treatment that enhances gasoline stability, while reducing the build up of gum and varnish formation
- EASY TO USE: Use one bottle per tank for most effective treatment, additive cleans nearly 100% efficiency in one treatment
- 15 Ounce (4 Pack)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Red Line |
| Brand | Red Line |
| Model | Fuel System Cleaner |
| Item Weight | 3.89 pounds |
| Package Dimensions | 12.24 x 10.41 x 2.95 inches |
| Item model number | 60103 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 60103-4- |
| Special Features | Reduces need for octane by up to two points |

## Product Details

- **Brand:** Red Line
- **Item Form:** Liquid
- **Scent:** Unscented
- **Specific Uses For Product:** Fuel System Cleaner
- **Material Feature:** Safe for continual use

## Images

![Red Line 60103 SI-1 Complete Fuel System Cleaner, Cleans and Prevents Corrosion in Fuel Systems, Cleans Injectors, Carburetors, Valve and Combustion Chamber Deposits - 15 Ounce (4 Pack) - Image 1](https://m.media-amazon.com/images/I/71denyRWoIL.jpg)

## Available Options

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

## Questions & Answers

**Q: Do you need to change your oil after using this through a full tank of gas?**
A: No need to change oil.  This is a fuel additive that cleans fuel injectors to better mileage.  Does work.

**Q: Is this ok as y to use with diesel engines?**
A: NO....use the one for diesel (Red Line 85 Plus Diesel Fuel Additive (12 oz.) (Quantity 1)) It is also available on Amazon in several qtys.

**Q: does this also help clean the catalytic converter?**
A: Maybe it cleans fuel system and injectors.
Help clean the CAT? Sorry, I can't answer that question.

**Q: Has anyone tried using this as for an engine flush? What were the results?**
A: No, and why use it as an engine flush? This product was formulated and meant to be used as a fuel system cleaner and it's an effective one, at least in my case.  I've been using in the past 4 years on 3 different vehicles. Best results you'll really notice is using it every 15-20k. Using it more frequently is just a waste. Now, going back to engine flush question, I've used BG EPR.  I used it on my wife's 2010 CRV with 150k and0

## Frequently Bought Together

- Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce (4 Pack)
- Liqui Moly Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2037
- Liqui Moly 2030 Pro-Line Gasoline System Cleaner, 500 ml, 16.91 Fl Oz (Pack of 1)

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**Shop now:** [https://www.desertcart.sk/products/9408228-red-line-60103-si-1-complete-fuel-system-cleaner-cleans](https://www.desertcart.sk/products/9408228-red-line-60103-si-1-complete-fuel-system-cleaner-cleans)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-02*