--- product_id: 1243992 title: "04154 15W40 Oil, 1 Gallon (128 Ounces)" brand: "royal purple" price: "$146.79" currency: USD in_stock: true reviews_count: 12 category: "Royal Purple" url: https://www.desertcart.us/products/1243992-04154-15w40-oil-1-gallon-128-ounces store_origin: US region: United States of America --- # Boosts fuel efficiency by up to 3 MPG 15W-40 viscosity for versatile engine protection Superior wear & corrosion protection 04154 15W40 Oil, 1 Gallon (128 Ounces) **Brand:** royal purple **Price:** $146.79 **Availability:** ✅ In Stock ## Summary > 🛢️ Power your drive with Royal Purple — where performance meets precision. ## Quick Answers - **What is this?** 04154 15W40 Oil, 1 Gallon (128 Ounces) by royal purple - **How much does it cost?** $146.79 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/1243992-04154-15w40-oil-1-gallon-128-ounces) ## Best For - royal purple enthusiasts ## Why This Product - Trusted royal purple brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted & Proven:** Highly rated with 4.8 stars from 790+ users, a top choice for professionals and enthusiasts alike. - • **Premium Synthetic Blend:** Combines high-quality base oils with proprietary additives for optimized engine performance. - • **Engine Longevity Guaranteed:** Advanced additive technology protects critical engine parts and expensive catalytic converters. - • **Fuel Efficiency That Pays Off:** Experience noticeable mileage gains, saving you money and reducing your carbon footprint. - • **Universal Fit, Maximum Performance:** Seamlessly compatible with most gasoline and diesel engines—no special procedures needed. ## Overview Royal Purple 15W-40 motor oil is a premium synthetic blend designed for universal fit in gasoline and diesel engines. It delivers superior wear protection, enhances fuel efficiency by up to 3 miles per gallon, and safeguards catalytic emission systems. Licensed to meet API SN, ILSAC GF-5, and Dexos1 standards, this 1-gallon bottle ensures your engine runs cleaner, longer, and more efficiently. ## Description Royal Purple Motor Oil Combines premium base oils with proprietary additive technologies to create high performance motor oils that optimize engine performance and provide superior protection. No special procedures are necessary when upgrading to Royal Purple. Royal Purple motor oil is fully compatible with mineral or other synthetic oils. Royal Purple recommends waiting until the manufacturer’s first scheduled oil change in new gasoline engines before upgrading to Royal Purple. Royal Purple’s API licensed motor oil delivers superior protection and improves performance in gasoline and diesel engines. Royal Purple’s API SN licensed motor oil meets ILSAC GF-5 and Dexos1 1 performance requirements. Review: Good oil - Received in a timely manner. Works as expected. Review: Best Oil - I have been using this oil in my vehicles since 2012. I took my truck to the shop for a tune-up, and the mechanic recommended this oil, telling me how great it was. At first, I thought he was just trying to upsell me, but I decided to give it a try. I reset my fuel mileage to monitor the effects of the new oil. Sure enough, I started getting three more miles per gallon. I was convinced and have been using it ever since. ## Features - Better wear protection - Increased fuel efficiency - Better protection of the expensive catalytic emission system - Improved compatibility with fuels containing ethanol - Superior corrosion protection - Fit type: Universal Fit ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000OP6KLY | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #11,760 in Automotive ( See Top 100 in Automotive ) #162 in Motor Oils | | Brand | Royal Purple | | Brand Name | Royal Purple | | Compatible with Vehicle Type | Car | | Container Type | Bottle | | Customer Reviews | 4.8 out of 5 stars 790 Reviews | | Global Trade Identification Number | 00641330041549 | | Included Components | 4qts of Royal Purple 15W-40 | | Item Type Name | Oil | | Item Weight | 7.7 Pounds | | Liquid Volume | 128 Fluid Ounces | | Manufacturer | Royal Purple | | Manufacturer Part Number | 04154 | | Manufacturer Warranty Description | Manufacturer Warranty | | Model Number | ROY04154 | | Package Information | Bottle | | Size | 1 Gallon | | UPC | 641330041549 | | Unit Count | 128.0 Ounce | | Vehicle Service Type | Car | | Viscosity Level | Medium to High | ## Product Details - **Brand:** Royal Purple - **Liquid Volume:** 128 Fluid Ounces - **Package Information:** Bottle - **Vehicle Service Type:** Car - **Viscosity:** 15W-40 ## Images ![04154 15W40 Oil, 1 Gallon (128 Ounces) - Image 1](https://m.media-amazon.com/images/I/71fOCB74weL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good oil *by M***E on April 23, 2026* Received in a timely manner. Works as expected. ### ⭐⭐⭐⭐⭐ Best Oil *by C***C on December 15, 2024* I have been using this oil in my vehicles since 2012. I took my truck to the shop for a tune-up, and the mechanic recommended this oil, telling me how great it was. At first, I thought he was just trying to upsell me, but I decided to give it a try. I reset my fuel mileage to monitor the effects of the new oil. Sure enough, I started getting three more miles per gallon. I was convinced and have been using it ever since. ### ⭐⭐⭐⭐⭐ Great stuff *by T***S on February 20, 2026* Great stuff ## Frequently Bought Together - Royal Purple 04154 15W40 Oil, 1 Gallon (128 Ounces) - ACDelco GM Original Equipment PF2232 Engine Oil Filter - Allison 29539579 Screw-on Filter with Magnet Filter Kit replacing filter for Allison transmission per OEM Specs, For utility terrain vehicles --- ## 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/1243992-04154-15w40-oil-1-gallon-128-ounces](https://www.desertcart.us/products/1243992-04154-15w40-oil-1-gallon-128-ounces) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-08*