--- product_id: 355829712 title: "OS-1 Seal Engine Oil Burning/Leak Repair - 16.9 oz., Pack of 1" brand: "bar's leaks" price: "309.69 DT" currency: TND in_stock: true reviews_count: 13 category: "Bar's Leaks" url: https://www.desertcart.tn/products/355829712-os-1-seal-engine-oil-burning-leak-repair-16-9 store_origin: TN region: Tunisia --- # Stops oil burning & blue smoke Universal engine compatibility Made in the USA quality OS-1 Seal Engine Oil Burning/Leak Repair - 16.9 oz., Pack of 1 **Brand:** bar's leaks **Price:** 309.69 DT **Availability:** ✅ In Stock ## Summary > 🛠️ Seal the deal on leaks before they seal your fate! ## Quick Answers - **What is this?** OS-1 Seal Engine Oil Burning/Leak Repair - 16.9 oz., Pack of 1 by bar's leaks - **How much does it cost?** 309.69 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/355829712-os-1-seal-engine-oil-burning-leak-repair-16-9) ## 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 - • **Smoke-Free Drive:** Effectively stops oil burning and eliminates blue exhaust smoke for cleaner performance. - • **Trusted & Proven:** Backed by 3,700+ reviews and a solid 4.2-star rating, making it a must-have for proactive vehicle care. - • **Engine Leak Savior:** Repairs main seals & gaskets across all gasoline & diesel engines, including turbocharged and hybrid models. - • **Versatile Power Fix:** Compatible with cars, trucks, motorcycles, boats, and even heavy-duty equipment. - • **Synthetic Blend Boost:** Works seamlessly with all oil types—petroleum, high mileage, synthetic blends, and fully synthetic. ## Overview Bar's Leaks OS-1 is a premium synthetic blend oil seal repair solution designed to stop leaks, renew worn valve seals, and eliminate oil burning in a wide range of gasoline and diesel engines. Compatible with all oil types and vehicle classes, it’s a trusted, USA-made fix that keeps your engine running cleaner and longer. ## Description This premium quality synthetic blend works with all types of motor/engine oil including regular petroleum, high mileage, synthetic blends and fully synthetic formulas Review: Works - Works Review: Work - Perfect product ## 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 | B0764H6K45 | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | #10,342 in Automotive ( See Top 100 in Automotive ) #19 in Motorcycle Chemicals & Fluids #177 in Automotive Oils | | Brand | Bar's Leaks | | Brand Name | Bar's Leaks | | Compatible with Vehicle Type | Motorcycle | | Container Type | Can | | Customer Reviews | 4.2 out of 5 stars 3,739 Reviews | | Global Trade Identification Number | 00046087010358 | | Included Components | 16.9 oz oil seal | | Item Type Name | Oil Seal (Engine Oil Burning/Leak Repair) | | Item Weight | 1.1 Pounds | | Liquid Volume | 16.9 Fluid Ounces | | Liquid volume | 16.9 Fluid Ounces | | Manufacturer | Bar's Products | | Manufacturer Part Number | OS-1 | | Manufacturer Warranty Description | See Manufacturer | | Model Number | OS-1 | | Number of Packs | 1 | | Package information | Can | | SAE J300 Viscosity Grade | 15W-40 | | Size | Pack of 1 | | UPC | 046087010358 | | Unit Count | 16.9 Milliliters | | Vehicle service type | Motorcycle | ## Product Details - **Brand:** Bar's Leaks - **Liquid volume:** 16.9 Fluid Ounces - **Package information:** Can - **SAE J300 Viscosity Grade:** 15W-40 - **Vehicle service type:** Motorcycle ## Images ![OS-1 Seal Engine Oil Burning/Leak Repair - 16.9 oz., Pack of 1 - Image 1](https://m.media-amazon.com/images/I/81wHGFYridL.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 ### ⭐⭐⭐⭐⭐ Works *by A***I on 2 January 2026* Works ### ⭐⭐⭐⭐⭐ Work *by E***L on 15 October 2024* Perfect product ### ⭐⭐⭐⭐ it really worked on my 2007 bmw 740 in dubai *by T***N on 29 January 2022* my car smoked a lot on high throttle and when the traffic was busy or parked for 5 to 10 minutes, the exhaust always smoked and smelled I spent a lot of money on some additives, and got advice from the garage for the repair very high repair cost to replace valve seals, I also ordered many kinds of pcv valve to replace but no success i have tried this product and it worked, it's not 100% but it's also 70%, my car has reduced smoke, and has reduced odor, i think it will work by adding it every time oil ## Frequently Bought Together - Bar's Leaks OS-1 Oil Seal Engine Oil Burning and Leak Repair, 16.9 oz. - Bar's Leaks 1000 High Mileage Engine Repair, 16.9 oz | Restores Performance, Increases Compression & Horsepower, Stops Leaks, Noise & Smoking - Bar's Leaks High Mileage Transmission Repair-It, 16.9 Fl Oz --- ## 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.tn/products/355829712-os-1-seal-engine-oil-burning-leak-repair-16-9](https://www.desertcart.tn/products/355829712-os-1-seal-engine-oil-burning-leak-repair-16-9) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-23*