---
product_id: 48069330
title: "10278 Engine Stop Leak, 946 ml"
brand: "lucas oil"
price: "€ 44.25"
currency: EUR
in_stock: true
reviews_count: 13
category: "Lucas Oil"
url: https://www.desertcart.nl/products/48069330-10278-engine-stop-leak-946-ml
store_origin: NL
region: Netherlands
---

# Extends oil life by 50%+ Reduces engine noise Safe, non-damaging formula 10278 Engine Stop Leak, 946 ml

**Brand:** lucas oil
**Price:** € 44.25
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal on leaks and silence your engine’s secrets!

## Quick Answers

- **What is this?** 10278 Engine Stop Leak, 946 ml by lucas oil
- **How much does it cost?** € 44.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/48069330-10278-engine-stop-leak-946-ml)

## Best For

- lucas oil enthusiasts

## Why This Product

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

## Key Features

- • **Engine-Safe Formula:** Contains no harmful chemicals—protect your investment with trusted Lucas Oil quality.
- • **Leak-Proof Confidence:** Stops seal leaks effectively in engines, transmissions, and hydraulic systems.
- • **Versatile Application:** Perfect for older vehicles and heavy machinery alike, ensuring broad compatibility.
- • **Whisper-Quiet Performance:** Experience noticeably less engine noise for a smoother, more refined drive.
- • **Prolong Your Engine’s Lifespan:** Boost oil longevity by over 50%, saving you time and money on maintenance.

## Overview

Lucas Oil 10278 Engine Stop Leak is a premium additive designed to stop seal leaks in engines, transmissions, and hydraulic systems. It extends engine oil life by at least 50%, reduces engine noise, and contains no harmful ingredients, making it ideal for maintaining and protecting older vehicles and heavy equipment.

## Description

Lucas engine oil stop leak is an all new formulation of Lucas additives and very specific base stocks designed to stop seal leaks in engines. Use 20% of system capacity (example: 1 litre Lucas engine oil stop leak to 4 litres of motor oil) Lucas engine oil stop leak is also effective at stopping leaks in automatic transmissions, hydrostat transmissions or hydraulic systems, 10% is usually adequate.

Review: A good additive - This works really well on older cars where you may have a small oil drip here and there. Also quietens the engine. A good proven product
Review: Good product - Did exactly what it said it would, cured an oil leak on a combine.

## Features

- Extends the life of engine oil by at least 50%
- Contains nothing that could be harmful to an engine
- Less engine noise

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001KXN3YQ |
| Best Sellers Rank | 2,096 in Automotive ( See Top 100 in Automotive ) 10 in Engine Oil Additives |
| Brand | Lucas Oil |
| Customer Reviews | 4.3 4.3 out of 5 stars (5,858) |
| Date First Available | 8 Sept. 2010 |
| Item Weight | 920 g |
| Item model number | 10278 |
| Manufacturer | Lucas Oil Products Inc |
| Manufacturer part number | 10278 |
| Model | Engine Stop Leak |
| OEM Part Number | 10278 |
| Product Dimensions | 8.38 x 8.38 x 29.85 cm; 920 g |
| Viscosity | 5w-30 sae_grade |

## Product Details

- **Brand:** Lucas Oil
- **Liquid volume:** 1 Quarts
- **Package information:** Bottle
- **Vehicle service type:** ATV, Motorcycle
- **Viscosity:** 5w-30 sae_grade

## Images

![10278 Engine Stop Leak, 946 ml - Image 1](https://m.media-amazon.com/images/I/61XY52k8MzL.jpg)

## Questions & Answers

**Q: Will this still work if added to existing oil or must it be added at the next oil change?**
A: I have used this a number of times in older motorcycles, with great success.  I have used it coincident to an oil change and also added it between changes.  In both cases it has worked very well, indeed.  I should not hesitate to add it without changing the oil, provided that there is room for it within the oil capacity of the machine.

**Q: Will this work on a main seal for a beetle with an air cooled engine which uses mineral oil and only holds 2.5  litres of oil.**
A: Depends on how badly the seal is worn, if just allowing a small amount of oil to pass and small amount of smoke then could help, if seal is damaged and need replacing then it wont help..certainly worth a try if just smoking slightly...

**Q: Will this work to seal piston rings on a Zafira please**
A: Sorry no.Only works on oil seals.

**Q: i think my turbo leaking oil on my tt will it work on it.**
A: I am confident it might. . Sealed my oil leak

## Customer Reviews

### ⭐⭐⭐⭐⭐ A good additive
*by J***4 on 5 November 2025*

This works really well on older cars where you may have a small oil drip here and there. Also quietens the engine. A good proven product

### ⭐⭐⭐⭐⭐ Good product
*by R***. on 28 September 2025*

Did exactly what it said it would, cured an oil leak on a combine.

### ⭐⭐⭐⭐ Another Lucas product in my bag of tricks ...
*by N***L on 24 January 2020*

After 300k miles, the car has a suspect oil leak (probably the turbo bearing seals) and to make matters worse, on a recent oil change I put in a slightly thinner grade of oil than I should. Used various Lucas products in the past (the fuel saver is really good, as is the oil stabiliser) and decided to get a bottle of stop leak and add a little to thicken the oil. Slight engine rattle disappeared immediately. If there is a persistent slight oil leak, given my experience with other lucas products - I have the utmost confidence that it will slow it down as I add more when and if there's room to.

## Frequently Bought Together

- Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart
- Lucas Oil 10118 High Mileage Oil Stabilizer - 1 Quart

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-25*