---
product_id: 266413442
title: "11748 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil - 5 Quart"
brand: "royal purple"
price: "$346.89"
currency: USD
in_stock: true
reviews_count: 5
category: "Royal Purple"
url: https://www.desertcart.us/products/266413442-11748-hmx-sae-5w-30-high-mileage-synthetic-motor-oil
store_origin: US
region: United States of America
---

# Seal revitalizer reduces oil consumption in high-mileage engines Zinc/Phosphorus anti-wear compounds for engine longevity 5W-30 viscosity for year-round engine protection 11748 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil - 5 Quart

**Brand:** royal purple
**Price:** $346.89
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep your high-mileage engine running like new — don’t let performance slip away!

## Quick Answers

- **What is this?** 11748 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil - 5 Quart by royal purple
- **How much does it cost?** $346.89 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/266413442-11748-hmx-sae-5w-30-high-mileage-synthetic-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

- • **Friction Fighter:** Reduces metal-to-metal contact to maximize efficiency and smooth engine operation.
- • **Engine Longevity Booster:** Specifically engineered for engines with 75,000+ miles to minimize wear and restore peak performance.
- • **Seal Revitalization Tech:** Chemically enhances hardened seals, cutting down oil consumption and extending engine life.
- • **Advanced Anti-Wear Formula:** Packed with robust zinc and phosphorus compounds combined with proprietary additives to protect critical engine parts.
- • **Trusted High-Performance Brand:** Crafted by Royal Purple, pioneers with 200+ years of combined expertise in synthetic lubricants.

## Overview

Royal Purple 11748 HMX SAE 5W-30 is a premium synthetic motor oil designed specifically for vehicles with over 75,000 miles. It features advanced zinc/phosphorus anti-wear compounds and proprietary additives that reduce friction, restore engine performance, and revitalize seals to minimize oil consumption. Trusted by enthusiasts and professionals alike, this 5-quart oil ensures your engine stays protected and efficient under demanding conditions.

## Description

Royal Purple located in Porter, Texas, produces a wide range of high performance lubricants for nearly every consumer and industrial application. Royal Purple's founder John Williams was a pioneer in the development of high performance synthetic lubricants and collectively, Royal Purple's formulators have more than 200 years of expertise in developing high performance lubricants. Royal Purple focuses exclusively on developing state-of-the-art lubricants. Unlike companies that primarily focus on fuel and other petroleum byproducts, Royal Purple's sole mission is to develop products that significantly outperform other synthetic and mineral based oils. Royal Purple is very active in the lubricant industry and its related associations.

Review: Love the color but better than that I have had excellent results with this product. Improves my old cars engine. I drive a 2012 BMW 128i coupe and have 222000 kms on that girl. Changed the Vanos selenoids and still had a rough idle at start. Was going to clean the Vanos oil screens but decided to just use this oil to do so and I have no regrets.
Review: The price: Too much expensive

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00G3BRNVY |
| Best Sellers Rank | 654,438 in Automotive ( See Top 100 in Automotive ) 2,974 in Car Engine Oils |
| Brand | Royal Purple |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,692) |
| Date First Available | 12 Aug. 2014 |
| Item Weight | 889 g |
| Item model number | ROY11748 |
| Manufacturer | Royal Purple |
| Manufacturer part number | 11748 |
| Model | 11748 |
| OEM Part Number | 11748 |
| Product Dimensions | 39.07 x 34.93 x 19.84 cm; 889.04 g |
| Viscosity | 5W-30 |

## Product Details

- **Brand:** Royal Purple
- **Liquid volume:** 160 Fluid Ounces
- **Package information:** Bottle
- **Vehicle service type:** Car
- **Viscosity:** 5W-30

## Images

![11748 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil - 5 Quart - Image 1](https://m.media-amazon.com/images/I/61P+fXby7mS.jpg)

## Questions & Answers

**Q: Is this oil vw 502 rated**
A: I don’t know what your asking and I’m not gonna gts it, but, this is the best oil you will ever use.  I use it in my 95 Bronco, 17 Explorer Platinum, and my 18 King Ranch.  The bronco has 182K on it and uses almost a quart between 5K oil changes.  Bottom end will be slick when I ever have to take it out.  I run all royal purple fluids in trans and rears.  I believe in this oil as much as I believe in Jesus!

**Q: whats has a better VI this or the 10w30? Or  better numbers? htsc?**
A: Which VI test, Kinematic or Dynamic? So it’s not easy to give an easy answer. If you have an older car with lots of miles, then 10w30 can be the better choice over 5w30 in a Dynamic VI test; however, if your car isn’t really old then 5w30 is always the better choice. You can’t compare the VI because the 10w30 will always be lower, as the range between winter and operating temperature is less. I think Group is more important to you so you really should be looking for Group V oils, like Motul. They use ester, but the price obviously goes up, eh.

**Q: if anybody has used this on a 1992 firebird how is it?**
A: You should always mention your engine in your vehicle as well as the environment and type of use the vehicle gets when asking questions.  What specifics are you seeking when you ask "How is it?".
It is really not a reasonable question and I think you would greatly benefit by participating in some motor oils discussions and learn about motor oils.  Bobs The Oil Guy is the most popular I know of.
It is typically overpriced in my opinion.  The closes thing I have to your vehicle is a 1998 Trans Am WS6 with 5.7L LS1 engine with various modifications and dyno tune.  I don't use the current formulations of RP.  I have had reason to mostly tear my engine down and it shows no signs of premature wear on anything which is really how you will truly know how it is doing.  I spent over 4 years studying motor oils and filters and I use different ones in both my 4 wheeled vehicles and superbikes.  Superbikes get group V Ester basestock oils from French and German manufacturers.  Street cars including the TA get group III synthetics and synthetic filter media oil filters.  I use the rebates that come out every few months so it saves me a lot of money and I change my oil at less frequent mileage than recommended.  It would be fantastic if you were to learn as much as you needed to know about motor oils and filters and make your own informed decision.  And remember that formulations for all motor oils are constantly changing (and they don't mention it) and new products come out so what you might select today may not be what you select next year.

**Q: Is this Group IV oil?**
A: NO is the answer.  And there are only about 5% that are TRUE SYNTHETICS.  This is a group III "synthetic"  See Mobil vs Castrol and you will see why that law suit determined that in the US you can call oils that use CONVENTIONAL base stocks, Dino oil however you want to say it that has been highly refined through processed such as hydrocracking but would NOT be legal to sell with a label calling in synthetic in many places such as European countries like Germany.  Royal Purple USED to be considered a P.A.O. oil but changed without notice to customers (like any oil company would) but of course did not alter the price.  Remember there are also Group IV oils which are Ester based which is what I use in my motorcycles.  Though todays group III oils can be some of the best choices for your average passenger vehicle.  They are also cheaper with brands like Mobil 1 and Pennoil Platinum Ultra running rebates of at least $12 or more every few months.  With the cost of a 5 quart jug on sale on Amazon or any day at "Wal ly World" going for $24 you end up paying $12 for 5 quarts which means you can save money and if you are on the fence change it more often.  Remember an oil filter removes particulate matter from the oil NOT byproducts of the combustion process including things like acids.  So you do want to change both the oil and filter.  Use your manufacturers owners manual as your first maintenance schedule to follow and go from there.  Oil itself does not "wear out' but the additives do deplete including things like viscosity modifiers and detergents and contain those build ups of contaminants so changing your oil and filter is important and is vehicle and use specific.  Anyone that gives advice to others on what viscosity to use or what oil change intervals are appropriate without even knowing what the vehicle and use are should be ignored and shunned.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***D on 3 August 2023*

Love the color but better than that I have had excellent results with this product. Improves my old cars engine. I drive a 2012 BMW 128i coupe and have 222000 kms on that girl. Changed the Vanos selenoids and still had a rough idle at start. Was going to clean the Vanos oil screens but decided to just use this oil to do so and I have no regrets.

### ⭐⭐⭐⭐ Review
*by Q***I on 3 July 2024*

The price: Too much expensive

### ⭐⭐⭐⭐⭐ Review
*by な***さ on 22 November 2025*

古めの車に入れると、エンジンコンディションが改善したことを体感できます。

## Frequently Bought Together

- Royal Purple 11748 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil - 5 Quart
- K&N Premium Oil Filter: 20,000 Mile Engine Protection with Wrench Off Nut: Compatible with Select 1981-2023 FORD/LINCOLN/TOYOTA/VOLKSWAGEN Vehicle Models (See Description for Select Models), HP-1002
- K&N Premium Oil Filter: 20,000 Mile Engine Protection with Wrench Off Nut: Compatible with Select 1990-2023 INFINITI/MAZDA/NISSAN/SUBARU Vehicle Models (See Description for Select Models), HP-1008

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-08*