I have 90 in my area will I need a full bottle to make 93 or half with 18gallon tank?

one bottle treat will 18 gallons or if you want to be precise one ounce per gallon of unleaded fuel. I use this in my Shelby SC Cobra 427. If you are just trying to bump up the rating I would find 93 fuel as it can get expensive to use at each fill up. I run only 93 NON ethanol gas and use it at each tank refill but then my car is primarily a show car. Hope this helps.

Is there a mixing chart for this stuff? Does more product mean higher octane numbers?

I don't know of a mixing chart and the octane level would have to increase more product. If I were you I'd contact Royal Purple. I'm sure they could answer your questions.

Can I mix this with 93 octane pump gas?

My 92 Volvo requires 93 octane. I got water in high test so decided to use regular gas and add booster. Very happy with the result as plenty of power.

Royal Purple 11757 Max Boost Octane Boost Case 16 Fl

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Description

⚡ Unleash your engine’s hidden potential—because average just won’t do.

PING FREE POWER - Say goodbye to engine knocking and pinging—smooth, responsive rides guaranteed.
TRUSTED BY PROS - Join thousands of enthusiasts upgrading their ride with Royal Purple’s premium boost.
ADVANCED MMT FORMULA - Cutting-edge chemistry stabilizes fuel and reduces harmful emissions.
FUEL ECONOMY REVIVAL - Restore lost horsepower and improve mileage, making every drop count.
RACE READY OCTANE SURGE - Elevate your fuel’s octane rating by up to 30 points for peak engine performance.

Royal Purple Max Boost is a high-performance octane booster and fuel stabilizer that raises gasoline octane by up to 30 points, reduces engine knocking, and restores power and fuel economy. Formulated with MMT for racing-grade performance, it enhances throttle response and lowers emissions, making it the go-to choice for drivers demanding peak engine efficiency and reliability.

Specifications

ASIN	B072K4S96B
Best Sellers Rank	#30,907 in Automotive ( See Top 100 in Automotive ) #356 in Motor Oils
Brand	Royal Purple
Customer Reviews	4.8 4.8 out of 5 stars (243)
Date First Available	June 9, 2017
Item Weight	5.05 pounds
Item model number	11757
Manufacturer	Royal Purple
Manufacturer Part Number	11757
Product Dimensions	9.2 x 7.1 x 6.5 inches

Reviews

J**Y

28.08.2024

J**T

6.01.2026

E**E

1.06.2025

P**L

25.01.2025

A**R

21.03.2025

T**D

9.12.2019

R**X

16.04.2025

P**.

14.12.2025

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