---
product_id: 16567168
title: "Royal Purple 18000 Fuel Injector Cleaner - 6 fl. oz."
brand: "royal purple"
price: "$15.60"
currency: USD
in_stock: true
category: "Royal Purple"
url: https://www.desertcart.us/products/16567168-royal-purple-18000-fuel-injector-cleaner-6-fl-oz
store_origin: US
region: United States of America
---

# Maximizes horsepower with optimized injector flow Restores fuel economy by up to 10% Stabilizes ethanol to protect engine longevity Royal Purple 18000 Fuel Injector Cleaner - 6 fl. oz.

**Brand:** royal purple
**Price:** $15.60
**Availability:** ✅ In Stock

## Summary

> 🚀 Unlock hidden horsepower and fuel savings with every drop!

## Quick Answers

- **What is this?** Royal Purple 18000 Fuel Injector Cleaner - 6 fl. oz. by royal purple
- **How much does it cost?** $15.60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/16567168-royal-purple-18000-fuel-injector-cleaner-6-fl-oz)

## Best For

- royal purple enthusiasts

## Why This Product

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

## Key Features

- • **Ethanol Shield:** Unique ethanol stabilizer prevents engine damage and corrosion
- • **Revive Your Ride:** Restores 100% injector flow for peak fuel efficiency
- • **Cleaner Combustion:** Reduces emissions and ensures quicker, easier starts every time
- • **Power Boost Formula:** Maximizes horsepower and responsiveness for a smoother drive
- • **Universal Compatibility:** Works seamlessly with both gasoline and diesel engines

## Overview

Royal Purple 18000 Fuel Injector Cleaner is a highly concentrated, fully synthetic formula designed to restore injector flow, stabilize ethanol, and maximize engine performance in both gasoline and diesel vehicles. Trusted by thousands, it improves fuel economy, reduces emissions, and enhances throttle response for a smoother, more powerful ride.

## Description

Royal Purple’s Max-Atomizer is a fully-synthetic, highly concentrated, high performance fuel injector cleaner. It is specially formulated to solve problems with today’s direct injection engines, but can be used with any type of fuel injection. Max-Atomizer contains highly concentrated polyether amine (PEA) detergents that quickly clean clogged and coked injectors, restoring 100% of injector flow. This optimizes injector spray patterns and better atomizes fuel as it enters the combustion chamber. The result is improved fuel economy, enhanced power and performance, reduced emissions, smoother idle, and quicker / easier starts. Max-Atomizer is the only fuel injector cleaner that also stabilizes ethanol, which chemically breaks down to cause harmful effects to an engine.

## Features

- Restores fuel economy
- Stabilizes ethanol
- Maximizes horsepower
- Improves responsiveness
- For use in both gasoline and diesel engines
- Fit type: Universal Fit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00XF03K54 |
| Best Sellers Rank | #782 in Automotive ( See Top 100 in Automotive ) #7 in Fuel System Cleaners |
| Brand | Royal Purple |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,552) |
| Date First Available | May 8, 2015 |
| Item Weight | 6 ounces |
| Item model number | 18000 |
| Lift Type | Power |
| Manufacturer | Royal Purple |
| Manufacturer Part Number | 18000 |
| Model | 18000 |
| OEM Part Number | 18000 |
| Product Dimensions | 2 x 2 x 7 inches |
| Special Features | Concentrated |

## Product Details

- **Brand:** Royal Purple
- **Item Form:** Spray
- **Material Feature:** Unscented
- **Scent:** Unscented
- **Specific Uses For Product:** Fuel Injector

## Images

![Royal Purple 18000 Fuel Injector Cleaner - 6 fl. oz. - Image 1](https://m.media-amazon.com/images/I/51z8yQJUDKL.jpg)

## Available Options

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

## Questions & Answers

**Q: Hi! Which is the diference between this and the other "maxclean" from royal purple? Thanks btw!**
A: Good question. We bought both and it seems that they truely do the same thing. Both very effective making cat coverter and fuel injector cleaner. I can tell and see the difference. Royal Purple is top of its game 5☆.

**Q: How does this differ from MaxClean?**
A: More like a direct/specific fuel injector cleaner.

**Q: how do you use this? what gas to mix with?**
A: Direction is on the can.  What I did was, wait for your gas tank also empty then I put it in then fuel up the gas.  Run it for 10, 15 minutes or more for it to clean out the injectors.  Hope this help.

**Q: how does this compare to sea foam cleaner?**
A: Seafoam is meant for marine motors. That's why it's called seafoam. Don't use it on yer car. That stuff is horrible. This, redlines SI-1 complete fuel system cleaner and of course techron by chevron. Techron IS what chevron calls their PEA which is what you want to clean out your fuel system. All 3 contain PEA. Seafoam doesn't.

## Frequently Bought Together

- Royal Purple 18000 Max Atomizer Fuel Injector Cleaner, 6 fl. oz.
- Royal Purple Max-Clean Fuel System Cleaner and Stabilizer 11722 20 Ounce
- Royal Purple ROY51020 API-Licensed SAE 0W-20 High Performance Synthetic Motor Oil - 5 qt.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-22*