---
product_id: 427532800
title: "Bar's Leaks OS-1-4PK Oil Seal Engine Oil Burning/Leak Repair, 16.9 oz, (Pack of 4)"
brand: "bar's leaks"
price: "₩465151"
currency: KRW
in_stock: true
reviews_count: 5
category: "Bar's Leaks"
url: https://www.desertcart.kr/products/427532800-bars-leaks-os-1-4pk-oil-seal-engine-oil-burning
store_origin: KR
region: South Korea
---

# Stops oil burning & blue smoke Works on 3-10 cylinder engines Repairs main seals & gaskets Bar's Leaks OS-1-4PK Oil Seal Engine Oil Burning/Leak Repair, 16.9 oz, (Pack of 4)

**Brand:** bar's leaks
**Price:** ₩465151
**Availability:** ✅ In Stock

## Summary

> 🛢️ Seal the deal, stop the leak, and drive worry-free!

## Quick Answers

- **What is this?** Bar's Leaks OS-1-4PK Oil Seal Engine Oil Burning/Leak Repair, 16.9 oz, (Pack of 4) by bar's leaks
- **How much does it cost?** ₩465151 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/427532800-bars-leaks-os-1-4pk-oil-seal-engine-oil-burning)

## Best For

- bar's leaks enthusiasts

## Why This Product

- Trusted bar's leaks brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Heavy-Duty Performance:** Formulated for both everyday drivers and heavy-duty use with precise dosage guidelines for maximum impact.
- • **Oil Consumption Control:** Effectively renews worn valve seals and guides to reduce oil burning and blue exhaust smoke, saving you costly repairs.
- • **Proudly Made in the USA:** Trusted quality and reliability from a brand with decades of automotive expertise.
- • **Multi-Vehicle Versatility:** Seals leaks in cars, trucks, SUVs, motorcycles, boats, ATVs, and even lawn equipment—one product, endless applications.
- • **Universal Engine Compatibility:** Engineered for gasoline, diesel, turbocharged, EcoBoost, hybrid & racing engines—your all-in-one leak solution.

## Overview

Bar's Leaks OS-1-4PK is a powerful oil seal and leak repair formula designed to restore worn valve seals and gaskets across a wide range of gasoline and diesel engines, including turbocharged and hybrid models. Suitable for 3 to 10 cylinder engines in cars, trucks, SUVs, motorcycles, boats, and more, it effectively stops oil burning and blue exhaust smoke while reducing oil consumption. This 4-pack of 16.9 oz bottles offers a versatile, heavy-duty solution made in the USA to keep your engine running smoothly and leak-free.

## Description

Your vehicle is a good candidate for Bar’s Leaks Oil Seal Engine Oil Burning & Leak Repair if it does not consume more than one quart of oil per day. We have designed this product to work in all gasoline and diesel engines including turbocharged, EcoBoost, hybrid and even racing engines. . This covers 3, 4, 5, 6, 8 and 10 cylinder engines in all cars, trucks, vans and SUV’s. Our product can also be used in heavy-duty applications referencing the appropriate dosage level. This applies to a wide range of other motor applications too: tractors, boats, RV’s, motorcycles (including wet clutch), ATV’s, lawn equipment.

Review: I use this in my 1966 Ford F-100 that still has the original drivetrain with 139,000 miles on the 352 V8 engine. As with these older vehicles, they used a rope seal for the rear bearing, which always leaked. Bar’s slows down the leak when used regularly during oil changes and when oil level is low. It doesn’t fix the rope seal from leaking, but does slow it down.
Review: I used a ton of this S* in my Mountaineer before I realized that my F* oil sensor plug was actually leaking. $20 and 15 minute fix. However, I use this stuff in all my older vehicles and any seal leak stops after a week or so. Good S* ! A must for older motors. Good price.

## Features

- REPAIRS LEAKING MAIN SEALS AND GASKETS: We have designed this product to work in all gasoline and diesel engines including turbocharged, EcoBoost, hybrid and even racing engines.
- RENEWS WORN VALVE SEALS AND GUIDES: Your vehicle is a good candidate for Bar’s Leaks Oil Seal Engine Oil Burning & Leak Repair if it does not consume more than one quart of oil per day.
- STOPS OIL BURNING & BLUE EXHAUST SMOKE: This covers 3, 4, 5, 6, 8 and 10 cylinder engines in all cars, trucks, vans and SUV’s. Our product can also be used in heavy-duty applications referencing the appropriate dosage level.
- SEAL ALL OTHER OIL LEAKS, DRIPS AND CONSUMPTION: This applies to a wide range of other motor applications too - tractors, boats, RV’s, motorcycles (including wet clutch), ATV’s, lawn equipment.
- MADE IN THE USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0764M5YFP |
| Best Sellers Rank | 504,027 in Automotive ( See Top 100 in Automotive ) 1,385 in Fillers, Adhesives & Sealants |
| Brand | Bar's Leaks |
| Customer Reviews | 4.3 4.3 out of 5 stars (104) |
| Date First Available | 3 Oct. 2017 |
| Item Weight | 2.22 kg |
| Item model number | OS-1-4PK |
| Manufacturer | Bar's Products |
| Manufacturer part number | OS-1-4PK |
| Model | Oil Seal |
| Product Dimensions | 22.86 x 17.78 x 12.7 cm; 2.22 kg |
| Viscosity | 5W-30 sae_grade |

## Product Details

- **Brand:** Bar's Leaks
- **Liquid volume:** 67.6 Fluid Ounces
- **Package information:** Tin
- **Vehicle service type:** Boat, Car, Tractor, Truck
- **Viscosity:** 5W-30 sae_grade

## Images

![Bar's Leaks OS-1-4PK Oil Seal Engine Oil Burning/Leak Repair, 16.9 oz, (Pack of 4) - Image 1](https://m.media-amazon.com/images/I/51KYtoogYcL.jpg)
![Bar's Leaks OS-1-4PK Oil Seal Engine Oil Burning/Leak Repair, 16.9 oz, (Pack of 4) - Image 2](https://m.media-amazon.com/images/I/61VLbmZN4-L.jpg)
![Bar's Leaks OS-1-4PK Oil Seal Engine Oil Burning/Leak Repair, 16.9 oz, (Pack of 4) - Image 3](https://m.media-amazon.com/images/I/71rN2PCVW4L.jpg)

## Questions & Answers

**Q: Should i drain 1/2 qt out of a full crankcase before adding this so as not to overfill?**
A: I would

**Q: Este producto tambien funsiona cuando el agua se mezcla gon el aceite?**
A: No, este producto no ayudará con ese problema. Es posible que se esté desarrollando un problema con la junta de la culata. Póngase en contacto con nuestro equipo de profesionales de servicio técnico en el siguiente enlace. Por favor, agregue la mayor cantidad de descripción sobre la marca y modelo del año del vehículo, así como el problema que está tratando.

Enlace de contacto: https://barsleaks.com/contact-us/

**Q: How much should i use for 2011 chrysler town and country and also would i apply this after an oil change?**
A: That vehicle has a 6 quart capacity. One bottle treats oil capacity from 4.5 quarts (4.3 liters) to 7 quarts (6.6 liters). Please use one full bottle after oil change. Make sure you are 1/2 quart low on oil before adding to the system to ensure you do not overfill. Top off with oil after adding if needed. 

If you have any other technical questions, feel free to contact our Technical Service Professionals at 800-345-6572 or if you would prefer you can use the contact us page on our website.

**Q: I have a 1992 Mitsubishi Montero. Would you recommend to use half a bottle, 3/4 of a bottle, or a full bottle?**
A: I would use 3/4 of a bottle. 

I looked up the 1992 Mitsubishi Montero. It looks like it can have two different engines (the 3.5L or 3.8L). Both engines have an oil capacity of 4.9L (5.18 quarts).

The bottle says to use 1/2 bottle for 4.4 quarts and a 1 bottle for 6 quarts.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***S on 13 January 2025*

I use this in my 1966 Ford F-100 that still has the original drivetrain with 139,000 miles on the 352 V8 engine. As with these older vehicles, they used a rope seal for the rear bearing, which always leaked. Bar’s slows down the leak when used regularly during oil changes and when oil level is low. It doesn’t fix the rope seal from leaking, but does slow it down.

### ⭐⭐⭐⭐⭐ Review
*by C***K on 26 January 2025*

I used a ton of this S* in my Mountaineer before I realized that my F* oil sensor plug was actually leaking. $20 and 15 minute fix. However, I use this stuff in all my older vehicles and any seal leak stops after a week or so. Good S* ! A must for older motors. Good price.

### ⭐⭐⭐⭐⭐ Review
*by G***Y on 25 November 2024*

Stopped oil burning in my Eco-Tec for awhile. You need to continue use to keep it working. Even helped my riding lawnmower!

## Frequently Bought Together

- Bar's Leaks OS-1-4PK Oil Seal Engine Oil Burning/Leak Repair, 16.9 oz, (Pack of 4)
- Bar's Leaks Rear Main Seal Repair (Pack of 6)
- Bar's Leaks High Mileage Engine Repair-It, Pack of 4

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-30*