---
product_id: 14393693
title: "Royal Purple 11744 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil - 1 Quart"
brand: "royal purple"
price: "€ 61.92"
currency: EUR
in_stock: null
reviews_count: 13
category: "Royal Purple"
url: https://www.desertcart.hr/products/14393693-royal-purple-11744-hmx-sae-5w-30-high-mileage-synthetic
store_origin: HR
region: Croatia
---

# Boosts MPG & engine smoothness Restores seals & reduces oil consumption Advanced anti-wear zinc/phosphorus tech Royal Purple 11744 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil - 1 Quart

**Brand:** royal purple
**Price:** € 61.92
**Availability:** ❌ Out of Stock

## Summary

> 🛢️ Royal Purple HMX: The high-mileage oil your engine’s been begging for.

## Quick Answers

- **What is this?** Royal Purple 11744 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil - 1 Quart by royal purple
- **How much does it cost?** € 61.92 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/14393693-royal-purple-11744-hmx-sae-5w-30-high-mileage-synthetic)

## 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

- • **Clean & Perform:** Powerful detergents remove engine deposits, maintaining cleanliness and maximizing engine efficiency.
- • **Extended Oil Life:** Outstanding oxidation resistance safely extends oil drain intervals up to 15,000 miles or 12 months.
- • **Seal Revival Formula:** Chemically revitalizes hardened seals, cutting down oil consumption common in high-mileage engines.
- • **Next-Level Protection:** Proprietary Synerlec additive technology with zinc/phosphorus compounds reduces friction and metal-to-metal contact.
- • **Engine Longevity Unlocked:** Specifically engineered for engines over 75,000 miles to minimize wear and restore peak performance.

## 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 technology and robust zinc/phosphorus anti-wear compounds, it reduces friction, revitalizes seals, and extends oil drain intervals up to 15,000 miles. Ideal for gasoline cars and light trucks, it cleans engine deposits while protecting critical components for enhanced 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 is the oil you never knew you needed - Royal purple hmx 5w-30 is by and far the best oil for 02 toyota solara. There's alot of oil brands out here claiming to have superior oil, but this one delivers. This order was fulfilled by desertcart.com, and im happy to say im content with my purchase. Car is running smoother, better MPG, and all the engine noise is gone.. happy customer
Review: Quality product - This is some good stuff.I use it in my two thousand four pontiac grand prix. G comp and the inside of my engine looks like the day I bought it, and it has two hundred thousand miles on it.Have used this oil for every single mile put on the car and I have yet to replace a single part in my engine because of this oil, it could be different.If you haven't used it for your cars whole lifespan, but i'm not sure all I know.Is my car runs good?And I'll keep buying

## 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 | #5,266 in Automotive ( See Top 100 in Automotive ) #92 in Motor Oils |
| Brand | Royal Purple |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,818) |
| Date First Available | October 22, 2013 |
| Global Trade Identification Number | 00641330117442 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.95 pounds |
| Item model number | 11745 |
| Manufacturer | Royal Purple |
| Manufacturer Part Number | 11744 |
| Model | 11744 |
| OEM Part Number | 11744 |
| Product Dimensions | 9 x 4.25 x 2 inches |
| SAE J300 Viscosity Grade | 5W-30 |
| Size | 1 Quart |
| UPC | 641330117442 |
| Vehicle Service Type | Car, Truck |
| Viscosity | 5W-30 |

## Product Details

- **Brand:** Royal Purple
- **Liquid Volume:** 32 Fluid Ounces
- **Package Information:** Bottle
- **Vehicle Service Type:** Car, Truck
- **Viscosity:** 5W-30

## Images

![Royal Purple 11744 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil - 1 Quart - Image 1](https://m.media-amazon.com/images/I/71FYuclDYIL.jpg)
![Royal Purple 11744 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil - 1 Quart - Image 2](https://m.media-amazon.com/images/I/71u9yD94TxL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Royal purple is the oil you never knew you needed
*by T***Y on October 3, 2025*

Royal purple hmx 5w-30 is by and far the best oil for 02 toyota solara. There's alot of oil brands out here claiming to have superior oil, but this one delivers. This order was fulfilled by Amazon.com, and im happy to say im content with my purchase. Car is running smoother, better MPG, and all the engine noise is gone.. happy customer

### ⭐⭐⭐⭐⭐ Quality product
*by S***N on September 25, 2025*

This is some good stuff.I use it in my two thousand four pontiac grand prix. G comp and the inside of my engine looks like the day I bought it, and it has two hundred thousand miles on it.Have used this oil for every single mile put on the car and I have yet to replace a single part in my engine because of this oil, it could be different.If you haven't used it for your cars whole lifespan, but i'm not sure all I know.Is my car runs good?And I'll keep buying

### ⭐⭐⭐⭐⭐ 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.

## Frequently Bought Together

- Royal Purple 11744 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil - 1 Quart
- Royal Purple 10-48 Oil Filter

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-18*