HMX® High Mileage Motor Oil

Royal Purple® HMX® is specifically formulated with robust zinc / phosphorus anti-wear additives and Royal Purple’s proprietary additive technology Synerlec® to minimize wear and restore lost engine performance.

HMX is chemically enhanced to revitalize hardened seals reducing oil consumption common in higher mileage engines. Stout detergents remove engine deposits and maintain cleanliness promoting engine longevity.

Key Benefits

  • Better Wear Protection

  • Reconditions Hardened Seals

  • Cleanliness

Royal Purple’s advanced Synerlec technology provides an exceptional film strength by reducing friction for peak engine performance. Synerlec also provides outstanding oxidation resistance to safely extend oil drains, and an ionic attraction to metal components maintaining a film of oil on parts minimizing start-up wear.

PERFORMANCE ADVANTAGES

  • Minimizes wear and restores lost engine performance
  • Increased protection against LSPI
  • Fortified with Zinc/Phosphorus anti-wear additive
  • Proprietary Synerlec additive technology increase oil film strength allowing for longer oil life
  • Exceptional oxidation stability
  • Reduces engine deposits
  • Superior corrosion protection

PLEASE NOTE:
Royal Purple meets API Service SL warranty requirements for gasoline engines. API recommends SL oils for 2004 or older automobiles. Royal Purple recommends this product for any four-cycle gasoline engine with 75,000 miles (120,000 km) or more.

Available Sizes

0W-20

Available SizesPart NumberItem Number
6-Gal. Bag in Box11902303046175033
3 x 5-Qt. Case11904303046175189
5-Qt. Bottle11903
6 x 1-Qt Case11901303046175115
1-Qt. Bottle11900

5W-20

Available SizesPart NumberItem Number
3 x 5-Qt Case37518301906175189
5-Qt. Bottle17518
6 x 1-Qt Case67511301906175115
1-Qt. Bottle17511

5W-30

Available SizesPart NumberItem Number
3 x 5-Qt Case11749301445175189
5-Qt. Bottle11748
6 x 1-Qt Case11745301445175115
1-Qt. Bottle11744

10W-30

Available SizesPart NumberItem Number
3 x 5-Qt Case11751301147175189
5-Qt. Bottle11750
6 x 1-Qt Case11747301147175115
55-Gal. Drum11746
  • 5star

    Best darn oil on the market. Worth the extra money.

  • 5star

    This is a great oil for older designed engines according to mfr. Website this oil contains zinc

  • 5star

    This oil works very well especially in cleaning the internal engine !

  • 5star

    Great synthetic oil, quiets noisy valves on my 1990 Bronco 2! One of the few brands I buy .

  • 5star

    Been using royal purple for decades. Excellent oil.

  • 5star

    ⁦Noticeable reduction in engine noise, but also accelerates more smoothly. I’ve also used the non-high mileage RP before with similar results. Oil analysis (sent to a lab) from standard RP oil shows it’s truly a superior quality oil that you cab totally run longer (just change the filter). A item!

  • 5star

    I’ve been using Royal Purple for years and it’s great. Perfect for older cars. Would recommend to anyone

  • 5star

    I have been using this brand for over 20 years. I put it in everything I operate

  • 5star

    I don’t know anything about oil, but I watched the video and was impressed. I have used this oil for 3 years now. My son-in-law is a mechanic, and he recommended it.

  • 5star

    ⁦My mechanic asked me why I use, “Royal Purple” synthetic oil. My reply, “it’s the best for Italian machinery’s and used for racing and Ferraris.” My mechanic’s reply, “you don’t have a high performance car, it’s only a ’97 CL 2.2 Acura. I said, “that’s right and why it’s just that much better to use in my car.” Check it out on line.⁩

FREQUENTLY ASKED QUESTIONS

Traditionally our industry has used Lorem Ipsum, which is placeholder text written in Latin. Unfortunately, not everyone is familiar with Lorem Ipsum and that can lead to confusion. I can’t tell you how many times clients have asked me why their website is in another language!

Traditionally our industry has used Lorem Ipsum, which is placeholder text written in Latin. Unfortunately, not everyone is familiar with Lorem Ipsum and that can lead to confusion. I can’t tell you how many times clients have asked me why their website is in another language!

Traditionally our industry has used Lorem Ipsum, which is placeholder text written in Latin. Unfortunately, not everyone is familiar with Lorem Ipsum and that can lead to confusion. I can’t tell you how many times clients have asked me why their website is in another language!

Traditionally our industry has used Lorem Ipsum, which is placeholder text written in Latin. Unfortunately, not everyone is familiar with Lorem Ipsum and that can lead to confusion. I can’t tell you how many times clients have asked me why their website is in another language!

Traditionally our industry has used Lorem Ipsum, which is placeholder text written in Latin. Unfortunately, not everyone is familiar with Lorem Ipsum and that can lead to confusion. I can’t tell you how many times clients have asked me why their website is in another language!

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