--- product_id: 527086384 title: "XL Xtreme Lubricant Diesel Fuel Additive: 8oz Bottles (12 Pack Case)" brand: "opti-lube" price: "804.40 DT" currency: TND in_stock: true reviews_count: 4 category: "Opti Lube" url: https://www.desertcart.tn/products/527086384-xl-xtreme-lubricant-diesel-fuel-additive-8oz-bottles-12-pack store_origin: TN region: Tunisia --- # Boosts fuel economy Cleans injectors & reduces deposits Highest lubricity concentration XL Xtreme Lubricant Diesel Fuel Additive: 8oz Bottles (12 Pack Case) **Brand:** opti-lube **Price:** 804.40 DT **Availability:** ✅ In Stock ## Summary > 🚛 Drive smarter, not harder — unleash XL power in every drop! ## Quick Answers - **What is this?** XL Xtreme Lubricant Diesel Fuel Additive: 8oz Bottles (12 Pack Case) by opti-lube - **How much does it cost?** 804.40 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/527086384-xl-xtreme-lubricant-diesel-fuel-additive-8oz-bottles-12-pack) ## Best For - opti-lube enthusiasts ## Why This Product - Trusted opti-lube brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Injector Detox:** Keep your fuel system spotless and emissions compliant 🧼 - • **Fuel Efficiency Booster:** Stretch every gallon further with proven mileage gains ⛽ - • **Rust & Corrosion Shield:** Guard your engine components against wear and tear year-round 🛡️ - • **Precision Dosage for Power:** Each 8oz bottle treats up to 80 gallons for tailored performance 💧 - • **Ultimate Engine Protection:** Maximize engine life with the market’s top lubricity formula ⚙️ ## Overview Opti-Lube XL Xtreme Lubricant Diesel Fuel Additive is a premium 8oz formula designed to enhance ultra-low-sulfur diesel fuel by delivering the highest lubricity on the market. It improves fuel economy, cleans fuel injectors, reduces emissions, and protects against rust and corrosion, ensuring your diesel engine runs smoother, lasts longer, and performs at its peak. Each bottle treats up to 80 gallons, making it an essential upgrade for any diesel-powered vehicle. ## Description Opti-Lube XL Xtreme Lubricant Formula Diesel Fuel Additive provides many benefits to your diesel engine and emission system. This powerful additive increases lubricity, improves fuel mileage, keeps your tank clean, and enhances your truck’s performance.Over time, build-up and residue occur within your fuel injectors, which decreases your truck’s efficiency. As this additive lubricates your fuel injectors, it can help reduce fuel system wear. It protects against rust and corrosion while simultaneously cleaning your fuel system. This creates a cleaner tank so that you can enjoy improved fuel mileage and a better running engine. Additionally, this additive prevents future build-up. It’s a powerful tool that cuts down wear and tear and helps to keep your vehicle in its original condition.When you add the Opti-Lube XL Xtreme Lubricant formula, you’ll notice a significant difference in the way your engine runs. It will run more smoothly. Opti-Lube XL Xtreme Lubricant is the ultimate lubricity additive with revolutionary deposit control. By providing exceptional lubrication to diesel fuel pumps and injectors, Opti-Lube XL allows your fuel system to reach its intended durability.Each 8-ounce bottle can treat up to 80 gallons of diesel fuel.For best results, always follow the directions listed on the bottle, as the suggested amount will depend on temperature, diesel type. This fuel additive is made specifically for ultra-low-sulfur diesel (ULSD). It’s time to upgrade your truck’s fuel capabilities by adding this fuel additive to your car care supplies. Order today! Review: Great stuff - Works well. Used to do a quart of 2 stroke per fill up. Now I just use this stuff. Keeps engine nice and quiet like the 2 stroke oil did Good stuff. (06 5.9 cummins w/345k) Review: Good insurance - This brand was rated high in the diesel forums. While I can't tell if how well it works, it is good insurance for my diesel engines. I have a 50 gallon tank to fill my diesel tractors and engines; I just pour suggested amount before filling my tank. I also add to my diesel truck tanks before fillup. ## Features - MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition and the tools in the toolbox. Our XL formula contains the highest lubricity concentration on the market today, with the testing to back it up, which helps to keep your engine operating at its best. It increases the lubricity properties of ultra-low-sulfur diesel so you can play more and worry less. - IMPROVES FUEL ECONOMY: This diesel fuel additive has been shown to enhance fuel mileage, giving you more bang for your buck. With greater fuel economy, you’ll find increased power for summer driving. - CLEANS INJECTORS: The XL Xtreme Lubricant formula helps to reduce deposits and emissions, making this lube compatible with all vehicle emissions systems. It also protects against rust and corrosion. - ENHANCES PERFORMANCE: Opti-Lube’s XL Xtreme Lubrication formula works to improve the performance of truck year round. By increasing the lubrication, keeping things clean, and water under control, XL improves your fuel systems’ efficiency, reliability, and prevents premature wear. - CONTAINS: 8oz bottles of Opti-Lube XL Xtreme Lubrication. Each 8oz bottle will treat up to 80 gallons of diesel fuel. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BTJ9X4SD | | Best Sellers Rank | #820,729 in Automotive ( See Top 100 in Automotive ) #286 in Diesel Additives | | Brand | Opti-Lube | | Customer Reviews | 4.3 4.3 out of 5 stars (11) | | Date First Available | January 31, 2023 | | Item Weight | 6.49 pounds | | Item model number | OPT-XL8 | | Manufacturer | Opti-Lube | | Manufacturer Part Number | OPT-XL8 | | Model | Opti-Lube XL Xtreme Lubricant Diesel Fuel Additive: 8oz Bottles | ## Product Details - **Brand:** Opti-Lube - **Item Weight:** 2.95 Kilograms - **Liquid Volume:** 8 - **Manufacturer:** Opti-Lube - **Number of Items:** 1 ## Images ![XL Xtreme Lubricant Diesel Fuel Additive: 8oz Bottles (12 Pack Case) - Image 1](https://m.media-amazon.com/images/I/71MayHBTe6L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great stuff *by M***. on October 5, 2018* Works well. Used to do a quart of 2 stroke per fill up. Now I just use this stuff. Keeps engine nice and quiet like the 2 stroke oil did Good stuff. (06 5.9 cummins w/345k) ### ⭐⭐⭐⭐ Good insurance *by J***M on July 21, 2022* This brand was rated high in the diesel forums. While I can't tell if how well it works, it is good insurance for my diesel engines. I have a 50 gallon tank to fill my diesel tractors and engines; I just pour suggested amount before filling my tank. I also add to my diesel truck tanks before fillup. ### ⭐⭐⭐⭐⭐ I love this. *by G***A on February 16, 2017* I love this. Actually makes my Mercedes RV run quieter. No more injector difficulties on cold mornings either. I now buy the gallon, and refill these to carry along. --- ## 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/527086384-xl-xtreme-lubricant-diesel-fuel-additive-8oz-bottles-12-pack](https://www.desertcart.tn/products/527086384-xl-xtreme-lubricant-diesel-fuel-additive-8oz-bottles-12-pack) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-03*