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Royal Purple Max Boost Octane Booster - 16 oz.

4.6 4.6 out of 5 stars 1,119 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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$16.46
Get it as soon as Tuesday, Mar 19
In Stock
Sold by G.P.S. and ships from Amazon Fulfillment.
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$7.99 ($1.33/Fl Oz)
Get it as soon as Tuesday, Mar 19
In Stock
Sold by World Brands 305 and ships from Amazon Fulfillment.
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$33.26 ($0.83/Fl Oz)
Get it Mar 19 - 21
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Ships from and sold by R/A Hoerr Incorporated.
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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$16.46$21.99$19.99$11.42-19% $12.97
Typical:$15.97
$82.10
Delivery
Get it as soon as Tuesday, Mar 19
Get it as soon as Tuesday, Mar 19
Get it as soon as Tuesday, Mar 19
Get it as soon as Tuesday, Mar 19
Customer Ratings
Value for money
4.1
4.0
4.4
4.4
Mileage
4.0
4.2
4.3
4.3
Easy to use
4.8
4.7
4.7
Sold By
G.P.S.
Pinelake Industries
Pinelake Industries
Engines Stores ✅✅
Amazon.com
G.P.S.

Important information

Legal Disclaimer

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

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Top Brand: Royal Purple

Highly Rated
4.8/5 star rating from 50K+ customer ratings
Trending
10K+ orders for this brand in past 3 months
Low Returns
Customers usually keep items from this brand

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.

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Warranty & Support

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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
    1,119 global ratings

    Customers say

    Customers like the performance, quality and mileage of the machine lubricant. They mention that it works well, it's effective and that it adds 2 additional miles per gallon. They also appreciate the value for money.

    AI-generated from the text of customer reviews

    55 customers mention48 positive7 negative

    Customers like the performance of the machine lubricant. For example, they say it makes an immediate difference in performance, the boat is running well, and it's effective as long as they don't pour the entire bottle per each tankful. Customers also mention that the motor is getting better mileage and that it has an increased throttle response.

    "...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

    "...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

    "...Noticeable difference in all areas." Read more

    30 customers mention30 positive0 negative

    Customers are satisfied with the quality of the machine lubricant. They say it works well and saves fuel mileage. Some customers also mention that it is the best fuel system cleaner they have ever used. They also say that it removes some deposits from the combustion chamber.

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

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

    "i seen it on you tube with scotty kilmore.. he said it works good to clean out injectors and deposits." Read more

    "Cleans injectors well but did not raise octane enough to make a difference. It's priced for what it does." Read more

    13 customers mention13 positive0 negative

    Customers are satisfied with the mileage of the machine lubricant. They mention that it adds 2 additional miles per gallon, works good, and saves fuel. It also greatly increases octane.

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

    "...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

    "...I do not feel any additional MPG, or performance using this product...." Read more

    "This is a very good product it will save you on your gas and get better gas mileage but every time you order it from Amazon it always comes dented..." Read more

    8 customers mention6 positive2 negative

    Customers like the value of the machine lubricant. They say it's an excellent product for an excellent price.

    "...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

    "...Its one can which is way too much for the price. This stuff works well but its listed in a way that will upset you." Read more

    "Great product! Great price!" Read more

    3 customers mention3 positive0 negative

    Customers are satisfied with the pinging issue of the machine lubricant. They mention that it solved the ringing issue and provided a hp increase, especially when using a tuner.

    "...You will absolutely notice a hp increase with no knocking or pinging, especially if using a tuner." Read more

    "Less ping better performance..." Read more

    "Solved pinging issue...." Read more

    3 customers mention3 positive0 negative

    Customers are satisfied with the stability of the machine lubricant. They mention that it provides added power and stability, and that it lasts longer.

    "...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

    "...in at every fill up or two, keeps my Dodge Charger 6.1L going fast and strong." Read more

    "gave added power, and stability" 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

    Reviewed in the United States on July 24, 2023
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    Top reviews from other countries

    Translate all reviews to English
    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
    Reviewed in Italy on May 30, 2023
    Item Package Quantity: 1Verified Purchase
    4 people found this helpful
    Report
    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
    Reviewed in the United Kingdom on December 20, 2022
    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