--- product_id: 14393693 title: "High Mileage Motor Oil" brand: "royal purple" price: "187.76 DT" currency: TND in_stock: true reviews_count: 13 url: https://www.desertcart.tn/products/14393693-high-mileage-motor-oil store_origin: TN region: Tunisia --- # Up to 15,000 miles extended oil drain intervals Zinc/phosphorus anti-wear compounds for engine longevity 5W-30 SAE viscosity for versatile climate performance High Mileage Motor Oil **Brand:** royal purple **Price:** 187.76 DT **Availability:** ✅ In Stock ## Summary > 🛠️ Keep your high-mileage engine running like new — because your ride deserves the royal treatment! ## Quick Answers - **What is this?** High Mileage Motor Oil by royal purple - **How much does it cost?** 187.76 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/14393693-high-mileage-motor-oil) ## 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 - • **Engine Revival Power:** Specifically engineered to restore performance in engines over 75,000 miles, giving your ride a second youth. - • **Deposit-Free Longevity:** Powerful detergents clean engine build-up, maintaining peak performance and prolonging engine life. - • **Seal Revitalization Tech:** Chemically softens hardened seals to reduce oil consumption and prevent leaks common in high-mileage vehicles. - • **Advanced Anti-Wear Shield:** Robust zinc/phosphorus additives reduce metal-to-metal contact, protecting your engine at every start-up. - • **Extended Drain Confidence:** Oxidation-resistant formula safely extends oil change intervals up to 15,000 miles, saving time and money. ## Overview Royal Purple 11744 HMX SAE 5W-30 is a high-mileage synthetic motor oil designed for engines with over 75,000 miles. Featuring proprietary Synerlec additive technology and zinc/phosphorus anti-wear compounds, it revitalizes seals, reduces friction, and extends oil drain intervals up to 15,000 miles. Ideal for gasoline cars and light trucks, it cleans engine deposits and protects against wear, ensuring enhanced engine longevity and performance. ## Description Royal Purple HMX SAE 5W-30 High-Mileage Synthetic Motor Oil, 1 quart is specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles. Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple's proprietary additive technology Synerlec, HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines. In addition, HMX is fortified with stout detergents to remove engine build-up and deposits, maintain cleanliness and promote engine longevity. The advanced Synerlec technology in HMX provides exceptional film strength, reducing friction and metal to metal contact for peak engine performance. It also provides outstanding oxidation resistance to safely extend oil drain intervals, and an ionic attraction to metal surfaces, providing protection and minimizing wear at start-up. Engineering formulations is a balancing act as engine oil has several key functions to perform. Higher mileage engines require a shift in this balance in certain regards as compared to new engines, such as anti-wear, detergency and preserving and restoring seal elasticity. Recommended for gasoline passenger car and light-truck engines beyond 75,000 miles, HMX can safely extend oil drain intervals up to 15,000 miles or 12 months in unmodified, mechanically-sound engines with proper filtration. When using HMX, Royal Purple recommends first performing two short clean-up drain intervals of 3,000 miles each with HMX to thoroughly clean the engine before extending drain intervals. Royal Purple HMX is suitable for use in engines specifying API service SJ, SL, SM and SN. Review: Royal Purple Keeps My Engine Happy - I've been using Royal Purple for years, and it has never let me down. This high-mileage oil helps keep my engine running smooth and quiet, even with higher mileage. Oil consumption stays low, engine protection is excellent, and it performs well in both hot and cold weather. It's easy to use, provides great value for the quality, and gives me confidence that my engine is getting the protection it deserves. Review: It's Not Just Hype - Listen, I get it. Everyone has some automotive elixir or magic potion they swear by. "Put this in your tank, and it will be like a new car!" We all wish it were true, but in reality, there's nothing you're going to put in an engine to bring it back to life, or keep it running 500,000 miles. But I can tell you this with complete honesty: Royal Purple was (and continues to be) absolutely worth the money in my case. At around 140,000 miles, the engine of my 2008 Jeep Grand Cherokee was noticeably louder than it was in its youth. Not a terrible noise, but there was definitely a mechanical clatter that wasn't there before. I'd also started to notice that when I changed the oil, I was getting less and less back out. I'd put 5 Qts in, and 3,000 miles later I'd drain out just 3 or even 2.5 Qts. I never noticed any oil on the driveway, so I don't know if it was burning it or only leaking while running, but it was going somewhere. One morning, after I'd gotten a little lazy and went a bit past my usual 3K oil change interval, I noticed the oil pressure light starting to flicker. Checked the stick and it was just barely registering. Something had to give. I didn't want to be the guy putting a Qt of oil in his old clunker every week (in other words, my Dad). So I started looking around and saw that Royal Purple was making some big claims with their high-mileage oil. Rejuvenating seals and cleaning your engine, that sort of thing. I kept doing more research, and the surprising thing was that more and more people seemed to be backing it up. What finally convinced me to make the switch was a YouTube video where they took the valve covers off an old engine before and after running Royal Purple through it -- there was no denying it looked cleaner inside. So I spent the money, even got the proper filter. Went ahead and did the shorter interval for the first change that they recommend to get the loose stuff out of the system before really settling in to the fully synthetic oil, even though it meant spending double. I figured if it worked, it was worth the money. Well, that was over 20,000 miles ago, and I'll be damned if things haven't improved. The engine is without question quieter, and at idle, is noticeably smoother running. But the best part is that the oil loss has been reduced dramatically. Now when I put in 5 Qts, I get 4 Qts back out. It's not perfect, but considering nothing has changed other than the oil, I think that's a big win. I no longer have to religiously check the dip stick every week for fear of an empty pan before the kid needs to go to school. End of the day, I'm just one guy who enjoys fiddling under the hood from time to time. I'm no expert, I can't tell you how or why things improved with Royal Purple. Maybe it's all just coincidence? All I know is that it's worth it for me to keep spending the extra money. I want to keep my engine running as well as possible, for as long as possible, and to me that means always using Royal Purple. ## Features - Specifically designed to minimize wear and restore lost performance in engines with more than 75,000 miles - Formulated with robust zinc/phosphorus anti-wear compounds combined with Royal Purple's proprietary additive technology - HMX is chemically enhanced to revitalize hardened seals, reducing oil consumption common in high-mileage engines - Reduces friction and metal-to-metal contact for peak engine performance - Also provides outstanding oxidation resistance to safely extend oil drain intervals, and an ionic attraction to metal surfaces, providing protection and minimizing wear at start-up - Fit type: Vehicle Specific ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00G3BRNLE | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #16,734 in Automotive ( See Top 100 in Automotive ) #188 in Motor Oils | | Brand | Royal Purple | | Brand Name | Royal Purple | | Compatible with Vehicle Type | Car, Truck | | Container Type | Bottle | | Customer Reviews | 4.9 out of 5 stars 2,896 Reviews | | Global Trade Identification Number | 00641330117442 | | Included Components | Auto part, Automotive Accessories, Replacement and Performance parts | | Item Type Name | High Mileage Synthetic Motor Oil | | Liquid Volume | 32 fluid ounces | | Manufacturer | Royal Purple | | Manufacturer Part Number | 11744 | | Manufacturer Warranty Description | Manufacturer Warranty | | Model Number | 11745 | | Number of Packs | 1 | | Package Information | Bottle | | SAE J300 Viscosity Grade | 5W-30 | | Size | 1 Quart | | UPC | 641330117442 | | Unit Count | 32 Fluid Ounces | | Vehicle Service Type | Car, Truck | | Viscosity Level | Low to Medium | ## Product Details - **Brand:** Royal Purple - **Liquid Volume:** 32 fluid ounces - **Package Information:** Bottle - **SAE J300 Viscosity Grade:** 5W-30 - **Vehicle Service Type:** Car, Truck ## Images ![High Mileage Motor Oil - Image 1](https://m.media-amazon.com/images/I/61jUdnRQXlL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Royal Purple Keeps My Engine Happy *by A***S on July 23, 2026* I've been using Royal Purple for years, and it has never let me down. This high-mileage oil helps keep my engine running smooth and quiet, even with higher mileage. Oil consumption stays low, engine protection is excellent, and it performs well in both hot and cold weather. It's easy to use, provides great value for the quality, and gives me confidence that my engine is getting the protection it deserves. ### ⭐⭐⭐⭐⭐ It's Not Just Hype *by T***I on April 29, 2024* Listen, I get it. Everyone has some automotive elixir or magic potion they swear by. "Put this in your tank, and it will be like a new car!" We all wish it were true, but in reality, there's nothing you're going to put in an engine to bring it back to life, or keep it running 500,000 miles. But I can tell you this with complete honesty: Royal Purple was (and continues to be) absolutely worth the money in my case. At around 140,000 miles, the engine of my 2008 Jeep Grand Cherokee was noticeably louder than it was in its youth. Not a terrible noise, but there was definitely a mechanical clatter that wasn't there before. I'd also started to notice that when I changed the oil, I was getting less and less back out. I'd put 5 Qts in, and 3,000 miles later I'd drain out just 3 or even 2.5 Qts. I never noticed any oil on the driveway, so I don't know if it was burning it or only leaking while running, but it was going somewhere. One morning, after I'd gotten a little lazy and went a bit past my usual 3K oil change interval, I noticed the oil pressure light starting to flicker. Checked the stick and it was just barely registering. Something had to give. I didn't want to be the guy putting a Qt of oil in his old clunker every week (in other words, my Dad). So I started looking around and saw that Royal Purple was making some big claims with their high-mileage oil. Rejuvenating seals and cleaning your engine, that sort of thing. I kept doing more research, and the surprising thing was that more and more people seemed to be backing it up. What finally convinced me to make the switch was a YouTube video where they took the valve covers off an old engine before and after running Royal Purple through it -- there was no denying it looked cleaner inside. So I spent the money, even got the proper filter. Went ahead and did the shorter interval for the first change that they recommend to get the loose stuff out of the system before really settling in to the fully synthetic oil, even though it meant spending double. I figured if it worked, it was worth the money. Well, that was over 20,000 miles ago, and I'll be damned if things haven't improved. The engine is without question quieter, and at idle, is noticeably smoother running. But the best part is that the oil loss has been reduced dramatically. Now when I put in 5 Qts, I get 4 Qts back out. It's not perfect, but considering nothing has changed other than the oil, I think that's a big win. I no longer have to religiously check the dip stick every week for fear of an empty pan before the kid needs to go to school. End of the day, I'm just one guy who enjoys fiddling under the hood from time to time. I'm no expert, I can't tell you how or why things improved with Royal Purple. Maybe it's all just coincidence? All I know is that it's worth it for me to keep spending the extra money. I want to keep my engine running as well as possible, for as long as possible, and to me that means always using Royal Purple. ### ⭐⭐⭐⭐⭐ Royal purple is the oil it says it is *by T***Y on October 3, 2025* Im adding 3 pictures with this review.. this product is absolutely amazing.. ive done a real test with real results using royal purple hmx 5w-30 for a total of 3 - 5k mile intervals. These are pictures of the underside of my oil cap. I have a 2002 toyota solara sle v6 with 186k miles.. as you can tell, the previous owners neglected this cars oil, and was probably running conventional.. there was an early 90s lawsuit against toyota for this cars engine ( 1MZ-FE ) and was very sludge prone, oil galleries would get clogged and the cars would quit.. with proper care, these cars will easily go beyond 300k.. the second picture is after my 2nd run and the third is after my 3rd cycle, for a total of 15,000 miles running just hmx.. This oil was designed for high mileage vehicles and is geared more towards protection with their synerlec additives, why it surprised me to see it cleaning this well.. plus my engine has NEVER been this quiet.. royal purple is not just hype, they are the real deal. Better to spend a few extra bucks and treat your car to a real spa then run junk inside of it. Amsoil ss is the only other oil ive used that compares. Am a happy customer!!! Update, got my Blackstone laboratory report back on a 3k mile run with royal purple hmx, couldn't went another 5k miles.. this oil was giving my engine next level protection. ## Frequently Bought Together - Royal Purple 11744 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil - 1 Quart - Royal Purple 10-48 Oil Filter --- ## 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/14393693-high-mileage-motor-oil](https://www.desertcart.tn/products/14393693-high-mileage-motor-oil) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-10-12*