---
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: "S$117"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/9408228-red-line-60103-si-1-complete-fuel-system-cleaner-cleans
store_origin: SG
region: Singapore
---

# Boosts fuel efficiency & stability Cleans fuel injectors & carburetors Prevents corrosion in fuel systems 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:** S$117
**Availability:** ✅ In Stock

## Summary

> ⛽ Keep your engine running like new—because your ride 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?** S$117 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/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

- • **Trusted by Thousands:** Top-ranked with 4.8-star rating from over 9,500 users
- • **Effortless Maintenance:** One bottle per tank—simple, fast, and effective
- • **Fuel Efficiency Booster:** Enhances gasoline stability, reducing gum and varnish buildup
- • **Corrosion Defense Shield:** Protects your engine’s vital components from rust and wear
- • **Ultimate Fuel System Detox:** Powerful blend cleans nearly 100% of deposits in one treatment

## Overview

Red Line 60103 SI-1 Complete Fuel System Cleaner is a premium 15 oz liquid additive designed to clean and protect fuel injectors, carburetors, valves, and combustion chambers. Its concentrated formula prevents corrosion, reduces gum and varnish buildup, and improves fuel stability, delivering nearly 100% cleaning efficiency in a single treatment. Trusted by professionals and ranked #1 in fuel system cleaners, this 4-pack ensures your engine performs at peak condition with effortless maintenance.

## Description

Buy 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): Fuel System Cleaners - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## 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 |
|---------------|-------|
| ASIN | B00NQB6O0A |
| Best Sellers Rank | #111 in Automotive ( See Top 100 in Automotive ) #1 in Fuel System Cleaners |
| Brand Name | Red Line |
| Contains Liquid Contents? | Yes |
| Customer Reviews | 4.8 4.8 out of 5 stars (9,550) |
| Included Components | Fuel System Cleaner |
| Item Form | Liquid |
| Item Type Name | Fuel System Cleaner |
| Item Volume | 425 Milliliters |
| Item Weight | 3.89 Pounds |
| Manufacturer | Red Line |
| Material Features | Unscented |
| Model Number | 60103 |
| Number of Items | 4 |
| Part Number | 60103-4- |
| Scent | Unscented |
| Size | 15 Fl oz (Pack of 4) |
| Special Features | Reduces need for octane by up to two points |
| Specific Uses For Product | Fuel System Cleaner |
| UPC | 737534816455 |
| Unit Count | 60.0 Fluid Ounces |

## Product Details

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

## 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/71PWCfm-XDL.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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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-07-07*