--- product_id: 747760973 title: "SAE 15W-40 Full Synthetic Diesel Engine Oil API CK-4/SN 5 Gallon Pail" brand: "ultra 1plus" price: "5935 kr" currency: DKK in_stock: true reviews_count: 5 url: https://www.desertcart.dk/products/747760973-sae-15w-40-full-synthetic-diesel-engine-oil-api-ck store_origin: DK region: Denmark --- # 220°C flash point thermal stability API CK-4/SN certified 5 Gallon bulk volume SAE 15W-40 Full Synthetic Diesel Engine Oil API CK-4/SN 5 Gallon Pail **Brand:** ultra 1plus **Price:** 5935 kr **Availability:** ✅ In Stock ## Summary > 🛠️ Keep your fleet unstoppable with Ultra1Plus 15W-40 – power, protection, and performance in every drop! ## Quick Answers - **What is this?** SAE 15W-40 Full Synthetic Diesel Engine Oil API CK-4/SN 5 Gallon Pail by ultra 1plus - **How much does it cost?** 5935 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/747760973-sae-15w-40-full-synthetic-diesel-engine-oil-api-ck) ## Best For - ultra 1plus enthusiasts ## Why This Product - Trusted ultra 1plus brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **One Oil to Rule Your Fleet:** Versatile for diesel & gasoline heavy-duty engines—backward compatible across mixed fleets - • **Rock-Solid Viscosity Stability:** Maintains precise 15W-40 viscosity under extreme heat and heavy loads—no shear breakdown - • **Unmatched Heavy-Duty Protection:** Full synthetic formula defends against wear, deposits, soot, and oxidation for longer engine life - • **Eco-Smart Emission Compatibility:** Protects DPF, EGR & SCR systems while reducing oil consumption and extending service intervals - • **Engineered for Modern Powerhouses:** Exceeds API CK-4, CJ-4, CI-4 PLUS & SN standards for 2020+ trucks & Tier 4 engines ## Overview Ultra1Plus SAE 15W-40 Full Synthetic Diesel Engine Oil is a premium 5-gallon pail designed for heavy-duty diesel and gasoline engines. It surpasses multiple API certifications including CK-4 and SN, delivering superior wear protection, exceptional shear stability, and thermal resilience up to 220°C. Engineered for 2020+ on-highway trucks, Tier 4 non-road equipment, and mixed fleets, it safeguards emission systems while reducing oil consumption and extending service intervals—making it the ultimate choice for professionals demanding peak engine performance and durability. ## Description Ultra1Plus SAE 15W-40 Full Synthetic Diesel Oil – API CK-4/SNUltra1Plus 15W40 diesel oil is a premium full synthetic heavy-duty engine oil designed for the most demanding diesel applications. This 15W-40 full synthetic oil delivers superior wear protection, exceptional viscosity stability, and reliable performance in extreme temperatures and heavy loads — perfect for long-haul trucks, construction equipment, agriculture machinery, and commercial fleets.Formulated with high-quality synthetic base oils and advanced additives, Ultra1Plus 15W40 full synthetic diesel oil provides outstanding oxidation control, shear stability, and anti-wear protection for modern high-speed four-stroke diesel engines.EXCEEDS MULTIPLE API STANDARDS This 15W-40 CK-4 diesel oil meets and exceeds API CK-4, API SN, CJ-4, CI-4 PLUS, CI-4, and CH-4. It is backward compatible and suitable for 2020+ on-highway trucks, Tier 4 non-road equipment, and all previous model year diesel engines.SUPERIOR ENGINE PROTECTION The advanced formula of this 15W40 full synthetic oil protects against oil oxidation, viscosity shear loss, soot thickening, piston deposits, aeration, and engine wear. It keeps your diesel engine cleaner and running longer under severe conditions.EXCEPTIONAL SHEAR STABILITY Ultra1Plus 15W-40 diesel oil maintains stay-in-grade viscosity under high heat and stress, preventing thermal breakdown and supporting extended service intervals.EMISSION SYSTEM COMPATIBILITY Specially engineered to protect modern after-treatment systems including Diesel Particulate Filters (DPF), EGR, and SCR while helping reduce oil consumption.VEHICLE COMPATIBILITY Recommended for: Heavy-duty diesel trucks, semi-trucks, construction, agricultural equipment, and mixed fleets. Not recommended for: Motorcycles, ATVs, snowmobiles, cruisers, choppers, or light-duty passenger cars. Engineered for professionals who demand maximum performance and durability — Ultra1Plus 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil. ## Features - API CK-4 / SN CERTIFIED 15W-40 FULL SYNTHETIC DIESEL OIL: U1P 15W40 diesel oil xceeds API CK-4, CJ-4, CI-4 PLUS, CH-4 and SN. Specifically engineered for 2020+ on-highway trucks and Tier 4 non-road diesel engines - SUPERIOR HEAVY-DUTY ENGINE PROTECTION: Advanced full synthetic formula protects against wear, piston deposits, soot thickening, oxidation, shear loss, and aeration — keeping your engine cleaner and running longer - EXCEPTIONAL SHEAR STABILITY & HIGH-TEMPERATURE PERFORMANCE: Maintains precise 15W-40 viscosity under extreme stress, heat, and heavy loads. Prevents breakdown and delivers reliable protection for long-haul trucks, construction, and agriculture equipment - REDUCED OIL CONSUMPTION & EMISSIONS SYSTEM COMPATIBILITY: Minimizes oil burn-off while protecting DPF, EGR, and after-treatment systems. Helps extend service intervals and maintain emission compliance - VERSATILE DIESEL & MIXED FLEET COMPATIBILITY: Backward compatible with all previous four-stroke diesel engines. Also suitable for gasoline heavy-duty applications requiring API SN. One oil for your entire fleet ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B08M9Q4QQY | | Automotive Fit Type | Vehicle Specific Fit | | Brand Name | ULTRA 1PLUS | | Compatible With Vehicle Type | Buses, Off-road / Industrial equipment, Truck, Vans | | Customer Reviews | 4.6 4.6 out of 5 stars (42) 4.6 out of 5 stars | | Flash Point | 220 Degrees Celsius | | Item Highlight | Delivers superior wear protection and thermal stability for heavy-duty diesel engines in extreme temperatures and heavy loads | | Item Weight | 17.24 kg | | Liquid Volume | 5 Gallons | | Manufacturer Part Number | UFS1540CK4SNP | | Model Number | UFS1540CK4SNP | | Sae J300 Viscosity Grade | 15W-40 | | Size | 5 Gallon Pail | | Unit Count | 18927.0589 millilitre | | Upc | 810050657570 | | Viscosity Level | Medium to High | ## Product Details - **Brand:** ULTRA 1PLUS - **Liquid volume:** 5 Gallons - **Flash point:** 220 Degrees Celsius - **UPC:** 810050657570 - **Automotive Fit Type:** Vehicle Specific Fit ## Images ![SAE 15W-40 Full Synthetic Diesel Engine Oil API CK-4/SN 5 Gallon Pail - Image 1](https://m.media-amazon.com/images/I/71DOdVHVQDL.jpg) ![SAE 15W-40 Full Synthetic Diesel Engine Oil API CK-4/SN 5 Gallon Pail - Image 2](https://m.media-amazon.com/images/I/71xXz9mFrcL.jpg) ![SAE 15W-40 Full Synthetic Diesel Engine Oil API CK-4/SN 5 Gallon Pail - Image 3](https://m.media-amazon.com/images/I/81Us0qA-z9L.jpg) ![SAE 15W-40 Full Synthetic Diesel Engine Oil API CK-4/SN 5 Gallon Pail - Image 4](https://m.media-amazon.com/images/I/71yYaArV-kL.jpg) ![SAE 15W-40 Full Synthetic Diesel Engine Oil API CK-4/SN 5 Gallon Pail - Image 5](https://m.media-amazon.com/images/I/71NPTeipZVL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great for my tractors in my truck *by on Reviewed in the United States 22 July 2026* It's compatible with all my tractors and trucks. The value for the money is good. It's synthetic, it's durable. It stays pretty clean in my engine for a while, especially on my tractors. I've not had any leakage or sealing issues ### ⭐⭐⭐⭐⭐ Great price, beats all retailers *by on Reviewed in the United States 21 April 2024* Great price on great synthetic. ### ⭐⭐⭐⭐⭐ Excellent oil I will buy again *by on Reviewed in the United States 24 June 2022* Excellent oil I will buy again mileage increase by 2 1/2 Mpg ## Frequently Bought Together - Ultra 1Plus SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil - 15W 40 Motor Oil API CK-4/SN (5 Gallon Pail) - Motorkote MK-HL01G-04 Heavy Duty Hyper Lubricant, 1-Gallon, Single --- ## 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.dk/products/747760973-sae-15w-40-full-synthetic-diesel-engine-oil-api-ck](https://www.desertcart.dk/products/747760973-sae-15w-40-full-synthetic-diesel-engine-oil-api-ck) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-09-29*