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Royal Purple Max Boost Octane Booster - 16 oz.

4.6 4.6 out of 5 stars 1,122 ratings

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Purchase options and add-ons

  • Replaces lead additives for protection of non-hardened valve seats
  • Raises octane rating up to 30 points or 3 numbers
  • Restores power and fuel economy while cleaning deposits from fuel injectors
  • Reduces power loss due to knock-retard in computer-controlled vehicles
  • Reduces engine knocking/pinging and stabilizes fuel
  • Max-Boost is a racing formula and is not street legal.
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$13.35
Get it as soon as Sunday, Mar 31
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$8.26 ($1.38/Fl Oz)
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$34.50 ($0.86/Fl Oz)
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Royal Purple Max Boost Octane Booster - 16 oz.
Royal Purple Max Boost Octane Booster - 16 oz.
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Price-10% $13.35
Typical:$14.86
$16.49$11.42-19% $12.97
Typical:$15.97
$82.10$32.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Easy to use
4.8
4.7
4.7
4.7
Value for money
4.1
4.4
4.4
4.2
Mileage
4.0
4.3
4.3
4.1
Sold By
G.P.S.
Amazon.com
Engines Stores ✅✅
Amazon.com
G.P.S.
Specialty Products Intl

Important information

Legal Disclaimer

CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Product Description

Royal Purple Max-Boost - 16 fl oz Can is a high-performance octane booster with fuel treatment that increases gasoline octane, reduces emissions, and enhances engine performance while stabilizing fuel. Max-Boost is formulated with MMT, which delivers the best octane enhancement to help eliminate engine-damaging detonation, pre-ignition, and pinging or knocking from low octane gasoline. Max-Boost is formulated for engines equipped with carburetors, port fuel injection and direct injection, as well as turbocharged, supercharged and nitrous-injected engines. Safe for use in leaded and unleaded gasoline's, and alternate fuels like gasohol, reformulated gasoline, and all ethanol blends. Max-Boost is safe for oxygen sensors and catalytic converters. Performance engine oils contain higher levels of phosphorus as an anti-wear additive, which can accumulate in catalytic converters and reduce their effectiveness. Max-Boost protects against phosphorus poisoning of catalytic converters.

Product information

Technical Details

Additional Information

Warranty & Support

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Product Warranty: For warranty information about this product, please click here

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Royal Purple Max Boost Octane Booster - 16 oz.


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What's in the box

  • Auto part, Automotive Accessories, Replacement and Performance parts
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    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    1,122 global ratings

    Customers say

    Customers like the performance, quality and value of the octane booster. They mention that it gives an immediate difference in performance, better throttle response and that it's worth every penny. They also appreciate the gas mileage, saying that it provides a 3 point otan boosting boost.

    AI-generated from the text of customer reviews

    53 customers mention45 positive8 negative

    Customers like the performance of the octane booster. For example, they say it makes an immediate difference in performance, gives better throttle response, and improves motor mileage. Some say it's effective as long as they don't pour the entire bottle per each tankful. That said, some say it runs smoother and has more power.

    "...Definitely an increased throttle response went into it and certainly MPG when just cruising...." Read more

    "...Ever since I added it to My Fuel, I have noticed that I have more Throttle Response and it seems to have eliminated the Lag...." Read more

    "...To be honest I was skeptical at first but it did give me a noticeable performance boost...." Read more

    "...I had to try this product, and it's given me the best performance of any octane booster I've tried, plus I trust it when pouring into my gas tank as..." Read more

    34 customers mention34 positive0 negative

    Customers are satisfied with the quality of the lubricant. They mention it's an excellent product for an excellent price, works well to clean out injectors and deposits, and is the best fuel system cleaner they have ever used. Some say it provides added power and stability.

    "I put this in my truck it cleaned my injection system pretty good...." Read more

    "...all the vehicles I keep up the maintenance on perform top notch, last longer, save my family a good bit of $$$$$$- I started using their "Max-..." Read more

    "Great stuff! I used this with my 2016 M4 GTS and it is flawless...." Read more

    "...Great product, useless if you don't have an engine that requires it though...." Read more

    15 customers mention12 positive3 negative

    Customers like the value of the octane booster. They say it's worth every penny, provides great pickup, and saves fuel mileage. Some mention that it works well and is the very best otanizer booster for use without ethanol.

    "...near 100- long story short, from -40 to +100 this octane booster is the very best (I use no ethanol fuel) 91 octane fuel and R.P. keeps my outfit..." Read more

    "...version and have no complaints whatsoever - particularly with the great price, I have to say that I really like how RP feels and how quickly the..." Read more

    "I like the price and the performance" Read more

    "Works ok but not better then other cheaper brands" Read more

    13 customers mention13 positive0 negative

    Customers are satisfied with the gas mileage of the octane booster. They mention that it gives about a 3 point otan boosting, and it definitely improves their gas mileage. Some say that it adds 2 additional miles per gallon, and provides added power and stability. Overall, customers are happy with the product's performance and recommend it to others.

    "...driving in Sport+ now as it's much more responsive and my mileage has improved noticeably. I will be getting a case of this now." Read more

    "...It's definitely improved my gas mileage also." Read more

    "Hi,this is an excellent product enhancing mileage distance and smooth running of the engine...." Read more

    "...It added 2 additional miles per gallon. Simply amazing!" Read more

    Growl
    5 Stars
    Growl
    Works great in my 14 raptor 6.2, she loves it!
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    Top reviews from the United States

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    Top reviews from other countries

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    Amazon Customer
    5.0 out of 5 stars Royal Purple...there are no Substitutes
    Reviewed in Canada on May 31, 2023
    Item Package Quantity: 1Verified Purchase
    Stefano N.
    5.0 out of 5 stars Ottimo Prodotto
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    Luis L.
    5.0 out of 5 stars buena marca
    Reviewed in Mexico on January 12, 2021
    Item Package Quantity: 1Verified Purchase
    Amazon Customer
    5.0 out of 5 stars GIVE YOUR CAR A BOOST
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    Item Package Quantity: 1Verified Purchase
    Client d'Amazon
    4.0 out of 5 stars Aucun détérioration pour l'injection électronique du véhicule.
    Reviewed in France on January 27, 2019
    Item Package Quantity: 1Verified Purchase