--- product_id: 8963643 title: "00234 Rear Main Sealer - 8 Ounce" brand: "bluedevil products" price: "£23.52" currency: GBP in_stock: true reviews_count: 13 url: https://www.desertcart.co.uk/products/8963643-00234-rear-main-sealer-8-ounce store_origin: GB region: United Kingdom --- # Restores seals while driving Universal engine compatibility Permanent sealant tech 00234 Rear Main Sealer - 8 Ounce **Brand:** bluedevil products **Price:** £23.52 **Availability:** ✅ In Stock ## Summary > 🛡️ Seal the deal on leaks before your next drive! ## Quick Answers - **What is this?** 00234 Rear Main Sealer - 8 Ounce by bluedevil products - **How much does it cost?** £23.52 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/8963643-00234-rear-main-sealer-8-ounce) ## Best For - bluedevil products enthusiasts ## Why This Product - Trusted bluedevil products brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Drive & Restore:** Revives dried, cracked seals as you hit the road—effortless maintenance. - • **Engine Agnostic:** Works seamlessly with gasoline & diesel engines using any oil type. - • **Seal-Safe Chemistry:** Free from petroleum distillates to protect your engine’s rubber seals. - • **Leak-Proof Confidence:** Permanently seals rear main leaks—no repeat treatments needed. - • **User-Friendly Formula:** Pour in, drive on—no mechanic required, saving you time & money. ## Overview BlueDevil Rear Main Sealer is an 8-ounce liquid formula designed to permanently repair rear main seal leaks by conditioning and restoring rubber seals while driving. Compatible with all gasoline and diesel engines and safe for synthetic or conventional oils, it offers a hassle-free, cost-effective alternative to expensive repairs. ## Description BlueDevil Rear Main Sealer is a product designed to fix leaks in the rear main seal of an engine. The rear main seal is a critical component of an engine, as it helps to keep the oil inside the engine and prevent it from leaking out. Over time, the seal can become worn or damaged, leading to leaks. Bluedevil Rear Main Sealer is formulated to be a non-particulate sealant that can mix with the engine oil and flow into the damaged areas of the rear main seal, creating a permanent seal. It is designed to work with all types of engine oil and can be used in both gasoline and diesel engines. Review: This works - 96 F-350 with 460 engine. Truck would leak a silver dollar spot when it sat. Used Blue Devil with a fresh oil change of Valvoline high mileage, it too has seal conditioners. It stopped leaking! It doesn't happen right away. Put about 700 miles on before it completely stopped. Review: Worked on 2008 MDX with 181,000 miles - The 2007-2009 Acura MDX's are known to have rear main seals that leak. Its $1250 - $1500 to have the seal replaced ($2 for the part, rest is labor) Our 2008 MDX has 181,000 miles and we were just looking for a solution to get it to 200,000 miles before we purchase our next vehicle. I will say I was disappointed the first week, it didn't seem to stop the oil burning smell or dripping. The smell comes because the oil leaks and flies backwards onto the exhaust pipes. Well my wife came home today and I just happened to be in the garage when she parked - no burning oil smell. Just smelled like a normal, hot engine. The oil drops have also stopped appearing under her car when she parks. I'm going to power wash/scrape the garage floor and monitor for drips. I may even power wash the underside of the MDX and the splash shields as they have been collecting oil for years now. For the time being - happy! ## Features - Permanent seal: This product is formulated to flow into damaged areas of the rear main seal to provide a permanent seal to keep your vehicle’s oil inside of the rear of the engine. Works as a permanent repair and does not need to be added when oil is changed. - Easy to use: BlueDevil Rear Main Sealer is designed to be easy to use, making it accessible to a wide range of drivers. Simply pour the recommended amount into the engine oil. - Restores while you drive: Designed to restore dried, cracked, and shrunken rubber seals to their original condition while you drive. - Safe to use: Does not contain petroleum distillates which can destroy seals. - Compatible with all types of engines: Works on gasoline or diesel engines that use synthetic or conventional oils, making it a versatile product that can be used on a wide range of vehicles. - · Do not use in brake systems or on painted surfaces! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0079JX4JO | | Best Sellers Rank | #69,651 in Automotive ( See Top 100 in Automotive ) #115 in Body Repair & Restoration Adhesives | | Brand | BlueDevil Products | | Brand Name | BlueDevil Products | | Color | Blue | | Compatible Material | Metal, Plastic | | Customer Reviews | 4.1 out of 5 stars 3,571 Reviews | | Global Trade Identification Number | 00891838002348 | | Included Components | 1 x 8 Oz. Bottle | | Item Dimensions | 6 x 2.5 x 2.5 inches | | Item Form | Liquid | | Item Type Name | Rear Main Sealer | | Item Weight | 8 ounces | | Item dimensions L x W x H | 6 x 2.5 x 2.5 inches | | Manufacturer | BlueDevil Products | | Material | Rubber | | Material Type | Rubber | | Model | 00234 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | 00234 | | Style | Compact | | Style Name | Compact | | UPC | 891838002348 | | Unit Count | 8 Ounce | | Warranty Description | limited | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** BlueDevil Products - **Item Weight:** 8 Ounces - **Item dimensions L x W x H:** 6 x 2.5 x 2.5 inches - **Material:** Rubber - **Style:** Compact ## Images ![00234 Rear Main Sealer - 8 Ounce - Image 1](https://m.media-amazon.com/images/I/717NLvzIfJL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Do you add it to your car, even if your oil is currently full?** A: You add it in substitution to oil making sure you don't overfill, right to the upper fill line is perfect & a little over is still ok. **Q: do i need to flush this after leak is fix?** A: No don't flush. It will come out when you need an oil change.but it would have done its job on that leak.. **Q: who do i get a hold of for this guarentee?** A: You have to directly contact the manufacturer, fill out a form, with proof of purchase, and send it back to them within 60 days **Q: will this stop oil leak on a 2005 hyundia santa fe with 3.5l engine?** A: I actually called the blue Devil company about a minivan with an oil leak. They said " absolutely". It did slow down the leak. ## Customer Reviews ### ⭐⭐⭐⭐⭐ This works *by S***E on July 1, 2026* 96 F-350 with 460 engine. Truck would leak a silver dollar spot when it sat. Used Blue Devil with a fresh oil change of Valvoline high mileage, it too has seal conditioners. It stopped leaking! It doesn't happen right away. Put about 700 miles on before it completely stopped. ### ⭐⭐⭐⭐⭐ Worked on 2008 MDX with 181,000 miles *by T***Y on May 22, 2023* The 2007-2009 Acura MDX's are known to have rear main seals that leak. Its $1250 - $1500 to have the seal replaced ($2 for the part, rest is labor) Our 2008 MDX has 181,000 miles and we were just looking for a solution to get it to 200,000 miles before we purchase our next vehicle. I will say I was disappointed the first week, it didn't seem to stop the oil burning smell or dripping. The smell comes because the oil leaks and flies backwards onto the exhaust pipes. Well my wife came home today and I just happened to be in the garage when she parked - no burning oil smell. Just smelled like a normal, hot engine. The oil drops have also stopped appearing under her car when she parks. I'm going to power wash/scrape the garage floor and monitor for drips. I may even power wash the underside of the MDX and the splash shields as they have been collecting oil for years now. For the time being - happy! ### ⭐⭐⭐⭐ Rear main seal *by M***N on June 19, 2026* slowed down the leak but did not stop it ## Frequently Bought Together - BlueDevil Products 00234 Rear Main Sealer - 8 Ounce - BlueDevil Products 49499 Oil Stop Leak - 8 Ounce - BlueDevil Products 00243 Stop Smoke & Engine Repair - 16 Ounce --- ## 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.co.uk/products/8963643-00234-rear-main-sealer-8-ounce](https://www.desertcart.co.uk/products/8963643-00234-rear-main-sealer-8-ounce) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-09-04*