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Royal Purple

Royal Purple 11748 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil - 5 Quart

  • Based on 2,728 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Nov 8
Order within 14 hours and 37 minutes
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Size: 5 Quart, (Single Unit)


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

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.

Viscosity: 5W 30 sae_grade


Brand: Royal Purple


Vehicle Service Type: Car


UPC:


Automotive Fit Type: Universal Fit


Viscosity: ‎5W 30 sae_grade


Brand: ‎Royal Purple


Vehicle Service Type: ‎Car


UPC: ‎641330117480


Automotive Fit Type: ‎Universal Fit


Global Trade Identification Number: ‎80


Manufacturer: ‎Royal Purple


OEM Part Number: ‎11748


Model: ‎11748


Item Weight: ‎1.96 pounds


Product Dimensions: ‎15.38 x 13.75 x 7.81 inches


Country of Origin: ‎USA


Item model number: ‎ROY11748


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎11748


Date First Available: October 22, 2013


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great stuff!!
Size: 1 Quart, (Case of 6)
exactly what my engine has been quenching for a while now ;)
Reviewed in the United States on June 5, 2025 by BeeHive ..
    • Love it
Size: 5 Quart, (Single Unit)
Love it
Reviewed in the United States on June 2, 2025 by Anthony Rose
    • functionality
Size: 5 Quart, (Single Unit)
awesome
Reviewed in the United States on May 31, 2025 by Kilaf
    • It's Not Just Hype
Size: 5 Quart, (Single Unit)
Review Image by Tom Nardi Tom Nardi
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. ... show more
Reviewed in the United States on April 29, 2024 by Tom Nardi Tom Nardi
    • High quality
Size: 5 Quart, (Single Unit)
Arrived quickly and was very well packaged. It was easily installed and works as well or better than other similar products I have used previously.
Reviewed in the United States on May 5, 2025 by John Kessler
    • The real purple stuff
Size: 5 Quart, (Single Unit)
Hands down, Royal Purple’s the best oil I’ve ever poured into my rig. Slapped some in, and my motor went from sounding like a ticked-off chainsaw to purring like a kitten—quiet as can be. Plus, I’m squeezin’ out better gas mileage, which means more cash for beer instead of the pump. Royal Purple’s never let me down; it’s the king of oils in my book! ... show more
Reviewed in the United States on April 8, 2025 by Nathan Froncek
    • The reviews are right great motor oil. RECOMMENDED
Size: 5 Quart, (Single Unit)
The reviews are right great motor oil. RECOMMENDED
Reviewed in the United States on May 11, 2025 by David Markarian
    • Really good oil
Size: 5 Quart, (Single Unit)
My 2010 GMC Sierra runs noticeably better on the highway. Would recommend!
Reviewed in the United States on April 4, 2025 by Matthew

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