---
product_id: 49554709
title: "STP Engine Stop Leak for Petrol & Diesel Engines 300 ml, Improved Concentrated Formula, Conditions your Engine and Prevents Minor Oil Leaks, Mechanical Car Cleaning Products, Made in the UK"
brand: "stp"
price: "₩39085"
currency: KRW
in_stock: true
reviews_count: 13
category: "Stp"
url: https://www.desertcart.kr/products/49554709-stp-engine-stop-leak-for-petrol-and-diesel-engines-300
store_origin: KR
region: South Korea
---

# renews heat-damaged seals prevents costly oil leaks 300 ml concentrated formula STP Engine Stop Leak for Petrol & Diesel Engines 300 ml, Improved Concentrated Formula, Conditions your Engine and Prevents Minor Oil Leaks, Mechanical Car Cleaning Products, Made in the UK

**Brand:** stp
**Price:** ₩39085
**Availability:** ✅ In Stock

## Summary

> 🛠️ Stop leaks, start driving with confidence!

## Quick Answers

- **What is this?** STP Engine Stop Leak for Petrol & Diesel Engines 300 ml, Improved Concentrated Formula, Conditions your Engine and Prevents Minor Oil Leaks, Mechanical Car Cleaning Products, Made in the UK by stp
- **How much does it cost?** ₩39085 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/49554709-stp-engine-stop-leak-for-petrol-and-diesel-engines-300)

## 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

- • **Engine Armor:** Boosts your engine oil’s protective power for longer-lasting performance.
- • **Seal the Deal:** Special polymer agents restore worn gaskets and seals, stopping leaks before they start.
- • **Trusted by Pros:** Top-rated with 4.4 stars from over 2,700 users who swear by its leak-stopping magic.
- • **Quick Fix, Long Lasting:** Works overnight to eliminate leaks, keeping your engine clean and efficient.
- • **Made in the UK, Engineered for Excellence:** Precision formulation crafted to meet the demands of petrol and diesel engines alike.

## Overview

STP Engine Stop Leak is a 300 ml concentrated formula designed to renew polymer seals and gaskets damaged by engine heat, preventing minor oil leaks and enhancing engine oil protection. Suitable for petrol and diesel engines, it offers a quick, effective solution trusted by thousands of users, helping avoid costly repairs and maintain engine cleanliness.

## Description

STP Engine Stop Leak is formulated with a special agent to renew polymer seals and gaskets damaged by the heat of normal engine operation, which can otherwise result in oil leaks and expensive mechanical work. STP Engine Stop Leak will also increase the protection offered by the existing engine oil.

Review: It works - Worked perfect on my diesel golf engine ! Stopped the leak and the smell
Review: Great product and highly recommend - Had a small leak under my van. Looked this up online and the reviews were good so I thought I would try it and I can tell you I'm glad I did. I put this in and went to work the next day where there were a few drops of oil there was nothing and hasn't leaked since. It's been 6 weeks now and still going strong

## Features

- Causes serious eye damage.
- Suspected of damaging fertility or the unborn child.
- car parts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004NLMH4Y |
| Best Sellers Rank | 1,033 in Automotive ( See Top 100 in Automotive ) 46 in Car Engine Oils |
| Brand | STP |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,739) |
| Date First Available | 13 Feb. 2011 |
| Item Weight | 300 g |
| Item model number | GST63300EN |
| Manufacturer | STP |
| Manufacturer part number | E302006100 |
| Model | ST63300EN |
| OEM Part Number | ST63300EN |
| Product Dimensions | 10 x 7 x 21.5 cm; 300 g |
| Viscosity | 5w_20 sae_grade |

## Product Details

- **Brand:** STP
- **Liquid volume:** 300 Millilitres
- **Package information:** Bottle
- **Vehicle service type:** Car
- **Viscosity:** 5w_20 sae_grade

## Images

![STP Engine Stop Leak for Petrol & Diesel Engines 300 ml, Improved Concentrated Formula, Conditions your Engine and Prevents Minor Oil Leaks, Mechanical Car Cleaning Products, Made in the UK - Image 1](https://m.media-amazon.com/images/I/61lN3GwrIVL.jpg)

## Questions & Answers

**Q: Can i use in any car**
A: yes you can

**Q: Will it stop a fule pump leak**
A: No it won’t doesn’t even stop engine leaks

**Q: Can you use on power steering leak which takes hydraulic oil?**
A: It didn’t work for my car the problem was something more serious

**Q: Is this an AT-205 alternative?**
A: No it's just an addition

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works
*by N***R on 12 October 2025*

Worked perfect on my diesel golf engine ! Stopped the leak and the smell

### ⭐⭐⭐⭐⭐ Great product and highly recommend
*by R***X on 30 December 2025*

Had a small leak under my van. Looked this up online and the reviews were good so I thought I would try it and I can tell you I'm glad I did. I put this in and went to work the next day where there were a few drops of oil there was nothing and hasn't leaked since. It's been 6 weeks now and still going strong

### ⭐⭐⭐⭐ Looks like it works
*by D***T on 19 January 2026*

Seems to have done the trick!

## Frequently Bought Together

- STP Engine Stop Leak for Petrol & Diesel Engines 300 ml, Improved Concentrated Formula, Conditions your Engine and Prevents Minor Oil Leaks, Mechanical Car Cleaning Products, Made in the UK
- STP Engine Degreaser Professional Series 500ml, Penetrates and Dissolves Heavy Dirt and Deposits, Easily and Quickly Restore your Engine's Performance for a Smoother Engine

---

## 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.kr/products/49554709-stp-engine-stop-leak-for-petrol-and-diesel-engines-300](https://www.desertcart.kr/products/49554709-stp-engine-stop-leak-for-petrol-and-diesel-engines-300)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-22*