--- product_id: 119371425 title: "Blue Diamond 5W-40 Diesel Engine Oil, 1 Gallon" brand: "hot shot's secret" price: "$216.25" currency: USD in_stock: true reviews_count: 8 category: "Hot Shot's Secret" url: https://www.desertcart.us/products/119371425-blue-diamond-5w-40-diesel-engine-oil-1-gallon store_origin: US region: United States of America --- # 3% improved fuel economy 71% wear reduction vs CJ-4 5W-40 viscosity for all temps Blue Diamond 5W-40 Diesel Engine Oil, 1 Gallon **Brand:** hot shot's secret **Price:** $216.25 **Availability:** ✅ In Stock ## Summary > 💎 Drive smarter, last longer — the Blue Diamond edge. ## Quick Answers - **What is this?** Blue Diamond 5W-40 Diesel Engine Oil, 1 Gallon by hot shot's secret - **How much does it cost?** $216.25 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/119371425-blue-diamond-5w-40-diesel-engine-oil-1-gallon) ## Best For - hot shot's secret enthusiasts ## Why This Product - Trusted hot shot's secret brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Heavy-Duty Ready:** Meets CK-4 & Ford WSS-M2C171-F1 specs—perfect for diesel trucks, tractors, and industrial rigs. - • **Maintenance Minimizer:** Reduced friction means fewer repairs and longer drain intervals—maximize uptime and ROI. - • **Fuel Efficiency Booster:** Cut fuel costs with up to 3% better economy thanks to advanced lubricant additives. - • **Cool & Clean Performance:** Lower oil temps and superior detergency keep your engine running cooler and cleaner longer. - • **Nano-Powered Engine Savior:** FR3 nanotech fills microscopic gaps to slash metal wear by 71%, extending engine life. ## Overview Hot Shot's Secret Blue Diamond 5W40 CK-4 diesel oil is a premium 100% PAO synthetic formula infused with patented FR3 nanotechnology. It delivers up to 3% improved fuel economy, reduces engine wear by 71% compared to CJ-4 oils, and maintains optimal viscosity across temperatures. Designed for heavy-duty diesel engines, it meets stringent API CK-4 and Ford specifications, ensuring superior oxidation stability, detergency, and extended drain intervals for enhanced engine protection and performance. ## Description Hot Shot's Secret 5W40 diesel oil delivers optimized performance to ensure your vehicle stays efficient and healthy for long-term use. This 100% PAO formula is infused with FR3 Nano Lubricant Technology so you can be confident in the product's quality. The optimized technology helps this PAO oil deliver the best performance for your vehicle, and it stands out from other synthetic ingredients by delivering cleaner oil for longer. Blue Diamond 5W-40 is a fully formulated CK-4 motor oil with high detergency, exceptional oxidation and thermal stability that prevents deposit formation and oil breakdown making longer drain intervals possible. In addition to exceeding the API CK-4 specification, Blue Diamond PAO 5W-40 meets the requirements from Ford for added wear protection as stated in Ford Specification WSS-M2C171-F1. Not all CK-4 specification oils meet both the CK-4 and the Ford specification. When you need trusted supplies to keep your engine running strong, Hot Shot's Secret diesel engine oil offers high performance to meet your essential requirements. This solution focuses on meeting critical vehicle needs, such as reduced maintenance, so auto owners can get more value from their investments. FR3 works by filling any microscopic irregularities in your machine components, helping to minimize metal-to-metal wear and tear in the vehicle's moving parts. The reduced friction decreases maintenance and repair requirements and enables you to get more prolonged use from your engine and individual mechanisms inside it. Meanwhile, the reduced friction also lowers the oil operating temperature, which can cut down on corrosion, overheating and otherwise overtaxing your vehicle and engine. Blue Diamond 5W-40 is recommended for heavy-duty trucks, agriculture, and industrial equipment, drilling rigs, stationary engines, turbo charged and racing engines. The CK-4 specification is backwards compatible with CJ-4, CI-4 and CI-4 Plus specification oils. Review: Good oil - Good oil have used this oil for my truck for several years. Review: The choice for diesel - I run this stuff in our fleet Ford Transit diesel vans. Oil tests have always been come back great, showing the 5000 mile changes could go longer. ## Features - Improves fuel economy up to 3 percent with cutting-edge nanotechnology and lubricant additives that fill in the microscopic surface irregularities of your machine components for smoother operation - Lowers oil consumption by incorporating lubricating properties that decrease overall oil operating temperature and depletion rates for your day-to-day vehicle usage - Reduces wear 71 percent over CJ-4 by decreasing metal-to-metal contact between components in your machine, helping protect critical parts of your vehicle engine long-term - Improves power for your engine with optimized friction reduction properties, infused with our patented FR3 Friction Reducter nano technology - Reduces friction between parts to help decrease maintenance and repair requirements, delivering better long-term performance, smoother operations and more efficient power ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07NDZCSF2 | | Best Sellers Rank | #129,320 in Automotive ( See Top 100 in Automotive ) #788 in Motor Oils | | Brand | Hot Shot's Secret | | Customer Reviews | 4.6 4.6 out of 5 stars (47) | | Date First Available | February 6, 2019 | | Item Weight | 7.5 pounds | | Item model number | BDGALPAO5 | | Manufacturer | Hot Shot's Secret | | Manufacturer Part Number | DIAMOND OIL PAO:BDGALPAO5 | | Model | Hot Shot's Secret Blue Diamond 100 Percent PAO Oil 5W40 CK4 1 Gallon | | Product Dimensions | 6.5 x 4.75 x 10 inches | | SAE J300 Viscosity Grade | 5W-40 | | UPC | 757347530812 | | Vehicle Service Type | Diesel engine heavy equipment, Diesel engine pickups, Diesel engine semis, Diesel engine tractors | | Viscosity | 5W-40 | ## Product Details - **Brand:** Hot Shot's Secret - **Liquid Volume:** 128 Fluid Ounces - **Package Information:** Can - **Vehicle Service Type:** Diesel engine heavy equipment, Diesel engine pickups, Diesel engine semis, Diesel engine tractors - **Viscosity:** 5W-40 ## Images ![Blue Diamond 5W-40 Diesel Engine Oil, 1 Gallon - Image 1](https://m.media-amazon.com/images/I/715yGPofAOL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: I have a 2016 ram 3500 cummins. which is better for the cummins 6.7 the blue or green oil?** A: Blue would be best if it is not "Deleted". If it is "Deleted" use Black. **Q: Can this be used in gas engines** A: No, sorry, it is not recommended for gas engines. **Q: Is this ok for a 2018 f250 6.7?** A: Yes absolutely both the 5w40 and 10w30 (which will be release in a few weeks at the most). Thanks! **Q: Is it OK to use the stiction eliminator with this oil** A: Yes ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good oil *by B***Y on March 15, 2026* Good oil have used this oil for my truck for several years. ### ⭐⭐⭐⭐⭐ The choice for diesel *by D***7 on January 23, 2026* I run this stuff in our fleet Ford Transit diesel vans. Oil tests have always been come back great, showing the 5000 mile changes could go longer. ### ⭐⭐⭐⭐⭐ 5w40 *by M***E on October 24, 2025* Good oil..used it in my 2020 F350 power stroke..fuel mileage did go up will definitely buy it again ## Frequently Bought Together - Hot Shot's Secret Blue Diamond 100 Percent PAO Oil 5W40 CK4 1 Gallon - Hot Shot's Secret Everyday Diesel Treatment 16 Ounce Squeeze Bottle (HSSEDT16ZS) - Motorcraft Oil Filter - FL2124S (Replaces FL2051S) --- ## 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.us/products/119371425-blue-diamond-5w-40-diesel-engine-oil-1-gallon](https://www.desertcart.us/products/119371425-blue-diamond-5w-40-diesel-engine-oil-1-gallon) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-19*