---
product_id: 76533793
title: "Radiator Flush (300 ml), Clear, (GST95300EN06)"
brand: "stp"
price: "¥3075"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/76533793-radiator-flush-300-ml-clear-gst95300en06
store_origin: JP
region: Japan
---

# Prevents overheating Works in just 30 minutes Safe on all metals & parts Radiator Flush (300 ml), Clear, (GST95300EN06)

**Brand:** stp
**Price:** ¥3075
**Availability:** ✅ In Stock

## Summary

> 🚗 Keep your engine chill and your ride flawless!

## Quick Answers

- **What is this?** Radiator Flush (300 ml), Clear, (GST95300EN06) by stp
- **How much does it cost?** ¥3075 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/76533793-radiator-flush-300-ml-clear-gst95300en06)

## Best For

- stp enthusiasts

## Why This Product

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

## Key Features

- • **Universal Compatibility:** Safe for all metals including aluminum, plus rubber hoses and gaskets
- • **Quick & Easy Maintenance:** Just pour, drive 30 minutes, drain, and flush—no hassle, no downtime
- • **Overheat? Not on your watch!:** Clears blocked water channels to keep your engine cool and efficient
- • **Preps Your Radiator Like a Pro:** Ideal before coolant changes to ensure peak performance and avoid costly repairs
- • **Extend Your Engine’s Lifespan:** Removes rust and sludge buildup to protect your cooling system long-term

## Overview

STP Radiator Flush (300 ml) is a powerful cooling system cleaner that removes rust, sludge, and blockages causing overheating. Safe for all metals including aluminum and compatible with rubber hoses and gaskets, it works in just 30 minutes to restore optimal cooling performance and extend your engine’s life. Perfect for pre-coolant change maintenance, this easy-to-use formula ensures your vehicle runs cooler and longer.

## Description

STP radiator flush 300ml can efficiently clean the cooling system. Its contain advanced formula clears blocked water channels that can cause overheating. This product can be used before changing or adding coolant/anti-freeze, to help keep your cooling system in optimum operating condition. It is safe with all metals. Shake bottle well and pour entire bottle into radiator. Leave in the cooling system and drive for about 30 minutes. Drain the radiator when cold, flush and refill with appropriate coolant/anti-freeze per manufacturer instructions. On vehicles where heater cannot be drained (see handbook), run the engine with the heater on, until the engine has warmed up, then drain the system and flush with clean water before adding anti-freeze.

## Features

- Cleans cooling system and extends the life of your cooling system
- It clears blocked water channels that can cause overheating, removing rust and sludge
- STP radiator flush is safe to use with all metals (including aluminium), all types of radiator and safe for rubber hoses, metal parts and gaskets

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | ArmorAll and STP, ENERGIZER TRADING LTD. SWORD HOUSE, TOTTERIDGE ROAD, HIGH WYCOMBE, HP13 6DG UK |
| Brand | STP |
| Model | RF300 |
| Product Dimensions | 12 x 4 x 6 cm; 330 g |
| Item model number | GST95300EN06 |
| Manufacturer Part Number | GST95300EN06 |
| Volume | 300 Millilitres |
| Colour | Clear |
| Stain Resistant? | No |
| Assembly Required | No |
| Voltage | 12 Volts |
| Manufacturer | ENERGIZER TRADING LTD. SWORD HOUSE, TOTTERIDGE ROAD, HIGH WYCOMBE, HP13 6DG UK |
| Item Weight | 330 g |

## Images

![Radiator Flush (300 ml), Clear, (GST95300EN06) - Image 1](https://m.media-amazon.com/images/I/61XQE4DncxL.jpg)

## Questions & Answers

**Q: Can i add it with existing coolant for flushing**
A: No it is imprctical

**Q: Can stp radiator flush be used for pulsar 200 NS bike with aluminum metal radiator?**
A: Yes

**Q: Can this be used to flush clogged heater core?. My car heater produces very little heat. How long i need to run the car to clean heater core**
A: Yes

**Q: Can this product be used with hyundai i10. Also please confirm if this is safe with gaskets and hoses**
A: Its totally safe. If you chk the contents, it will nt damage to rubber or metal parts. Its like cleaning agent which clear corrosion and dirt & greasy particals from radiator and clear the path to flow the coolant afterwords. Happy New Year 2020

## Customer Reviews

### ⭐⭐⭐⭐⭐ works perfect chilling cool from ac
*by T***I on 9 August 2024*

i had a oil leak into the radiator & did 3-4 cleanign services of radiator but this single handeldy cleared all the oil . & more oil buildup in the coolant reservoir . the last 3 times i serviced the radiator but this time after radiator flush the cooling of ac is next level

### ⭐⭐⭐⭐ STPRadiator coolant flush
*by R***M on 2 May 2022*

What i ordered. Got it.

### ⭐⭐⭐⭐⭐ Excellent product and well priced
*by A***A on 27 May 2024*

Very very good quality product as always stp has provided great results either radiator flush or petrol fuel system cleaners highly recommended

## Frequently Bought Together

- STP Radiator Flush 300 ml, Quickly Cleans All Radiator Cleaning Systems, Prevents Overheating, Rust and Corrosion, Mechanical Car Cleaning Products, Made in the UK
- STP GST62450EN06 Engine Flush for Petrol & Diesel Engines 450 ml

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/76533793-radiator-flush-300-ml-clear-gst95300en06](https://www.desertcart.jp/products/76533793-radiator-flush-300-ml-clear-gst95300en06)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-17*