---
product_id: 721558804
title: "505 CRF Fuel System Treatment - 16 oz Powerful Carbon & Injector Cleaner for Gasoline & Diesel Engines - Help Boost MPG, Restore Power, & Reduce Emissions - Easy Pour Bottle"
brand: "ats chemical"
price: "€ 114.43"
currency: EUR
in_stock: true
reviews_count: 5
category: "Ats Chemical"
url: https://www.desertcart.ie/products/721558804-505-crf-fuel-system-treatment-16-oz-powerful-carbon-injector
store_origin: IE
region: Ireland
---

# Cleans 5-20 gallons fuel Boosts MPG & power Removes carbon deposits 505 CRF Fuel System Treatment - 16 oz Powerful Carbon & Injector Cleaner for Gasoline & Diesel Engines - Help Boost MPG, Restore Power, & Reduce Emissions - Easy Pour Bottle

**Brand:** ats chemical
**Price:** € 114.43
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock hidden engine power & save at the pump—because your ride deserves the best!

## Quick Answers

- **What is this?** 505 CRF Fuel System Treatment - 16 oz Powerful Carbon & Injector Cleaner for Gasoline & Diesel Engines - Help Boost MPG, Restore Power, & Reduce Emissions - Easy Pour Bottle by ats chemical
- **How much does it cost?** € 114.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/721558804-505-crf-fuel-system-treatment-16-oz-powerful-carbon-injector)

## Best For

- ats chemical enthusiasts

## Why This Product

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

## Key Features

- • **Advanced Carbon Removal:** Targets injectors, valves, and combustion chambers for peak engine health.
- • **Dual Fuel Compatibility:** Works seamlessly with both gasoline and diesel engines.
- • **Pro-Recommended Maintenance:** Use every other oil change to keep your engine running like new.
- • **Effortless Fuel Tank Treatment:** Just pour directly into your fuel tank—no mess, no hassle.
- • **Performance & Efficiency Boost:** Experience smoother acceleration and improved fuel economy in just one tank.

## Overview

ATS Chemical 505 CRF Fuel System Treatment is a powerful 16 oz formula designed to clean carbon deposits from fuel injectors, valves, and combustion chambers in gasoline and diesel engines. Easy to use by pouring directly into the fuel tank, it treats 5 to 20 gallons of fuel, helping restore engine performance, boost MPG, and reduce emissions. Trusted by professionals and highly rated by users, it’s recommended for use every other oil change to maintain optimal engine health.

## Description

ATS 505CRF Fuel System Treatment is designed to be added directly to the fuel. Just remove the fuel cap and pour contents into fuel tank. One can of ATS Fuel System Treatment will treat 5 to 20 gallons of gasoline or diesel fuel. ATS Fuel System Treatment enhances gasoline to remove carbon deposits from the internal combustion engine components. This chemical mixture is proven to remove carbon from; fuel injectors, induction ports, induction valves, and combustion chambers. Carbon deposits on the injectors can cause drivability problems and poor fuel mileage. This advanced formula can clean carbonization from the port style injector and the direct style injector; increasing engine performance and fuel economy. It is recommended to use both treatments every other oil change. Do not use more than one bottle of 505CRO per oil change or one bottle of 505CRF per tank of gas. More chemical added is not better. Please follow directions! Warning: Do not mix with other chemicals in oil or fuel Not recommended for aviation engines. *Reminder: This product helps restore your vehicle to factory specifications relating to harmful carbon deposits. Know your vehicles health by seeking a trusted mechanics profesional advice.

Review: Great product. My big Lincoln went from a normal 22mpg to 25mpg just from having 505 CRF clean the fuel injectors in one tank of driving. Highly recommend. No, it isn't cheap, but you'll more than make the cost back in better performance and better mpg.
Review: How I used the product: I poured entire contents of bottle into a 2012 Toyota Camry Hybrid XLE. The car had roughly 12-13 gallons of gas when I used it. I drove mostly normally, but used engine braking to increase rpm downhill or whenever possible. It took roughly 1.5 weeks for the fuel containing 505 CRF to be used. Why I purchased the product: I mainly purchased the product as a way to fix what I felt like was throttle lag. The acceleration felt weak. Fuel economy was also a consideration on the value of this product to me. My concerns: I was skeptical of this product working due to my car being hybrid. Within the past 2 years I have also changed my Hybrid battery and noticed better fuel economy with that, but performance was still lacking in my opinion. What I experienced with CRF 505: At first, I didn't notice any changes. Not for several days driving. The car still felt "squishy" as it had been. Then somewhere between 1/2 and 1/4 it starting feeling much more responsive. The acceleration is smooth, fast, and stronger than ever. The car went from being a bit of a chore to drive to becoming fun. It feels much safer to have the car be responsive to my controls. Gas economy(full transparency): I am sure many people that get product's first concern is if this will generate enough value from the save fuel economy. I don't have enough data currently to be conclusive due to several factors such as: I haven't had fuel filter cleaned, I haven't driven a full tank of since using the product, I rely on the mpg avg display which can be off several percentage(even -/+ 5% is the difference between ~4mpg in a Camry), and driving style(due to difference in acceleration driving is slightly more "aggressive". My opinion(Should you use it): I am more than happy with my purchase. The product did what I wanted it to do. The performance improvement alone is enough Value for the Money for me, and any fuel economy is just a bonus. I believe that if I had used it on 5-7 gallons of gas it would have probably helped the fuel economy more than me using it on >12 gallons. The only reason I would have to not buy the product again: It worked correctly the first time! Follow up plan: My follow up plan is to follow this up with occasional fuel treatment using Marvel's Mystery oil, and to pay attention to my mpg to see if any changes.

## Features

- Brand: ATS Chemical

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CY8ZQ1X4 |
| Best Sellers Rank | #93,656 in Automotive ( See Top 100 in Automotive ) #334 in Oil & Fluid Additives |
| Brand | ATS Chemical |
| Customer Reviews | 4.6 4.6 out of 5 stars (881) |
| Date First Available | 28 November 2024 |
| Item Weight | 453 g |
| Item model number | DSI1030 |
| Manufacturer | ATS Chemical |
| Manufacturer Part Number | 1040 |
| Model | 505CRF Fuel System Treatment |
| Product Dimensions | 6.6 x 6.6 x 17.78 cm; 453.59 g |

## Images

![505 CRF Fuel System Treatment - 16 oz Powerful Carbon & Injector Cleaner for Gasoline & Diesel Engines - Help Boost MPG, Restore Power, & Reduce Emissions - Easy Pour Bottle - Image 1](https://m.media-amazon.com/images/I/61U1P43tbiL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***D on 23 November 2025*

Great product. My big Lincoln went from a normal 22mpg to 25mpg just from having 505 CRF clean the fuel injectors in one tank of driving. Highly recommend. No, it isn't cheap, but you'll more than make the cost back in better performance and better mpg.

### ⭐⭐⭐⭐⭐ Review
*by H***S on 16 July 2025*

How I used the product: I poured entire contents of bottle into a 2012 Toyota Camry Hybrid XLE. The car had roughly 12-13 gallons of gas when I used it. I drove mostly normally, but used engine braking to increase rpm downhill or whenever possible. It took roughly 1.5 weeks for the fuel containing 505 CRF to be used. Why I purchased the product: I mainly purchased the product as a way to fix what I felt like was throttle lag. The acceleration felt weak. Fuel economy was also a consideration on the value of this product to me. My concerns: I was skeptical of this product working due to my car being hybrid. Within the past 2 years I have also changed my Hybrid battery and noticed better fuel economy with that, but performance was still lacking in my opinion. What I experienced with CRF 505: At first, I didn't notice any changes. Not for several days driving. The car still felt "squishy" as it had been. Then somewhere between 1/2 and 1/4 it starting feeling much more responsive. The acceleration is smooth, fast, and stronger than ever. The car went from being a bit of a chore to drive to becoming fun. It feels much safer to have the car be responsive to my controls. Gas economy(full transparency): I am sure many people that get product's first concern is if this will generate enough value from the save fuel economy. I don't have enough data currently to be conclusive due to several factors such as: I haven't had fuel filter cleaned, I haven't driven a full tank of since using the product, I rely on the mpg avg display which can be off several percentage(even -/+ 5% is the difference between ~4mpg in a Camry), and driving style(due to difference in acceleration driving is slightly more "aggressive". My opinion(Should you use it): I am more than happy with my purchase. The product did what I wanted it to do. The performance improvement alone is enough Value for the Money for me, and any fuel economy is just a bonus. I believe that if I had used it on 5-7 gallons of gas it would have probably helped the fuel economy more than me using it on >12 gallons. The only reason I would have to not buy the product again: It worked correctly the first time! Follow up plan: My follow up plan is to follow this up with occasional fuel treatment using Marvel's Mystery oil, and to pay attention to my mpg to see if any changes.

### ⭐⭐⭐⭐⭐ Review
*by J***E on 19 January 2026*

worksasadvertised,smootherengineperformance

## Frequently Bought Together

- ATS Chemical 505 CRF Fuel System Treatment, 16 fluid ounces
- ATS Chemical 505 CRO Oil System Treatment (505 CRO Oil System Treatment 12 FL OZ)
- ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-01-28*