--- product_id: 133046749 title: "XL Xtreme Lubricant Diesel Fuel Additive: 8oz Bottles (6 Pack)" brand: "opti-lube" price: "€ 115.15" currency: EUR in_stock: true reviews_count: 4 category: "Opti Lube" url: https://www.desertcart.hr/products/133046749-xl-xtreme-lubricant-diesel-fuel-additive-8oz-bottles-6-pack store_origin: HR region: Croatia --- # Boosts fuel economy Cleans injectors & reduces deposits Highest lubricity concentration XL Xtreme Lubricant Diesel Fuel Additive: 8oz Bottles (6 Pack) **Brand:** opti-lube **Price:** € 115.15 **Availability:** ✅ In Stock ## Summary > 🚛 Drive smarter, not harder — fuel your truck’s future with Opti-Lube XL! ## Quick Answers - **What is this?** XL Xtreme Lubricant Diesel Fuel Additive: 8oz Bottles (6 Pack) by opti-lube - **How much does it cost?** € 115.15 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/133046749-xl-xtreme-lubricant-diesel-fuel-additive-8oz-bottles-6-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 pristine by reducing harmful deposits and emissions for smoother rides. - • **Fuel Efficiency Booster:** Stretch every gallon further with proven improvements in diesel mileage and power output. - • **Ultimate Engine Protection:** Maximize engine life with industry-leading lubrication that fights wear and corrosion. - • **Optimized Dosage Convenience:** Each 8oz bottle treats up to 80 gallons of ultra-low-sulfur diesel for hassle-free maintenance. - • **Year-Round Performance Enhancer:** Reliable lubrication and water control ensure your truck performs at peak all seasons. ## Overview Opti-Lube XL Xtreme Lubricant Diesel Fuel Additive is a premium 8oz formula designed to enhance diesel engine performance by providing the highest lubricity concentration on the market. It improves fuel economy, cleans fuel injectors, reduces emissions, and protects against rust and corrosion. Each bottle treats up to 80 gallons of ultra-low-sulfur diesel, ensuring optimal lubrication and extended engine life for professional-grade reliability. ## 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 | B01J2CRS1U | | Best Sellers Rank | #762,712 in Automotive ( See Top 100 in Automotive ) #235 in Diesel Additives | | Brand Name | Opti-Lube | | Container Type | Bottle | | Customer Reviews | 4.3 4.3 out of 5 stars (11) | | Included Components | Opti-Lube XL 8oz Bottles | | Item Form | Liquid | | Item Type Name | Opti-Lube XL Xtreme Lubricant Diesel Fuel Additive | | Item Weight | 3 Pounds | | Liquid Volume | 8 | | Manufacturer | Opti-Lube | | Recommended Uses For Product | Automotive | | UPC | 853001004399 | | Unit Count | 48.0 Fluid Ounces | ## Product Details - **Brand:** Opti-Lube - **Item Weight:** 3 Pounds - **Liquid Volume:** 8 - **Package Information:** Bottle - **Recommended Uses For Product:** Automotive ## Images ![XL Xtreme Lubricant Diesel Fuel Additive: 8oz Bottles (6 Pack) - Image 1](https://m.media-amazon.com/images/I/71v2y-9nysL.jpg) ## Available Options This product comes in different **Size** options. ## 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. ## Frequently Bought Together - Opti-Lube XL Xtreme Lubricant Diesel Fuel Additive: 8oz Bottles (6 Pack) - Opti-Lube XPD All Seasons Diesel Fuel Additive: 1 Gallon with Accessories (1 Hand Pump & 2 Empty 8oz Bottles) (1 Gallon XPD with Hand Pump and Regular Accessory Bottles) - Shell Rotella T6 Full Synthetic Heavy Duty Engine Oil 5W-40, 55 Gallon Drum --- ## 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.hr/products/133046749-xl-xtreme-lubricant-diesel-fuel-additive-8oz-bottles-6-pack](https://www.desertcart.hr/products/133046749-xl-xtreme-lubricant-diesel-fuel-additive-8oz-bottles-6-pack) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-21*