---
product_id: 650702802
title: "505 CRO Oil System Treatment - 12 oz Engine Oil Additive - Cleans Sludge, Reduces Emissions, Quiet Smooth Idle & Restores Performance in High-Mileage Gas & Diesel Engines"
brand: "ats chemical"
price: "₱10150"
currency: PHP
in_stock: true
reviews_count: 5
category: "Ats Chemical"
url: https://www.desertcart.ph/products/650702802-505-cro-oil-system-treatment-12-oz-engine-oil-additive
store_origin: PH
region: Philippines
---

# Reduces emissions & sludge Restores engine parts function 12 oz precision dosing 505 CRO Oil System Treatment - 12 oz Engine Oil Additive - Cleans Sludge, Reduces Emissions, Quiet Smooth Idle & Restores Performance in High-Mileage Gas & Diesel Engines

**Brand:** ats chemical
**Price:** ₱10150
**Availability:** ✅ In Stock

## Summary

> ⚙️ Unlock your engine’s hidden potential — smoother, cleaner, stronger!

## Quick Answers

- **What is this?** 505 CRO Oil System Treatment - 12 oz Engine Oil Additive - Cleans Sludge, Reduces Emissions, Quiet Smooth Idle & Restores Performance in High-Mileage Gas & Diesel Engines by ats chemical
- **How much does it cost?** ₱10150 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/650702802-505-cro-oil-system-treatment-12-oz-engine-oil-additive)

## 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

- • **Boosts Lubrication Efficiency:** Minimizes friction to extend engine life and reduce wear
- • **Deep-Cleans Sludge & Deposits:** Eradicates harmful buildup for a pristine oil system
- • **Revives Sticking Engine Components:** Frees piston rings, lifters, and cam phasers for smoother operation
- • **Universal Compatibility & Easy Use:** Works with gas & diesel engines—just add during oil change and drive
- • **Cuts Emissions & Enhances Eco-Performance:** Cleaner engine means greener drives and compliance confidence

## Overview

The 505 CRO Oil System Treatment is a 12 oz engine additive designed to clean sludge, restore sticking engine components, reduce emissions, and improve lubrication in high-mileage gas and diesel engines. Trusted by professionals and enthusiasts alike, it revitalizes engine performance and extends longevity with simple application during oil changes.

## Description

The 505 CRO Oil System Treatment (12 FL OZ) is an automotive product designed to improve the performance and longevity of your vehicle's engine by enhancing its oil system. This treatment typically works to: Clean and Protect: Helps remove sludge, varnish, and other deposits that can accumulate in the oil system, keeping it clean. Lubrication Improvement: Enhances the oil's ability to lubricate moving parts, reducing friction and wear. Performance Optimization: Improves overall engine performance by ensuring smoother operation. Compatibility: Usually safe for use with various types of engine oils and vehicles, though specifics should be checked on the product label. How to Use: Read the Label: Always follow the manufacturer's instructions provided on the product. Warm Up the Engine: Run the engine to bring it to normal operating temperature. Add Treatment: Pour the treatment directly into the oil system, either during an oil change or as specified by the product. Drive Normally: Let the product circulate through the engine to clean and enhance the system.

Review: Combustion engine clean
Review: 150,000 miles - this product helped me!

## Features

- Sticking piston rings
- Sticking lifters
- Sticking camshaft phasers
- Sticking oil control valve
- Sticking timing chain tensioner
- Restricted lubricating screens

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CYXTJ8P6 |
| Best Sellers Rank | #79,583 in Automotive ( See Top 100 in Automotive ) #309 in Oil & Fluid Additives |
| Brand | ATS Chemical |
| Customer Reviews | 4.6 4.6 out of 5 stars (298) |
| Date First Available | 30 March 2024 |
| Item Weight | 318 g |
| Item model number | DSI1040 |
| Manufacturer | ATS Chemical |
| Manufacturer Part Number | 1040 |
| Model | 505CRO |
| Product Dimensions | 15.24 x 5.59 x 5.59 cm; 317.51 g |

## Images

![505 CRO Oil System Treatment - 12 oz Engine Oil Additive - Cleans Sludge, Reduces Emissions, Quiet Smooth Idle & Restores Performance in High-Mileage Gas & Diesel Engines - Image 1](https://m.media-amazon.com/images/I/71PbpIgd82L.jpg)

## Available Options

This product comes in different **Part Number, Model, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Combustion engine clean
*by A***R on 25 November 2024*



### ⭐⭐⭐⭐⭐ 150,000 miles - this product helped me!
*by P***L on 4 December 2025*



### ⭐⭐⭐⭐⭐ Great Result
*by O***O on 25 October 2024*



## Frequently Bought Together

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

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**Shop now:** [https://www.desertcart.ph/products/650702802-505-cro-oil-system-treatment-12-oz-engine-oil-additive](https://www.desertcart.ph/products/650702802-505-cro-oil-system-treatment-12-oz-engine-oil-additive)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-02-09*