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

⛽ Power Up Your Drive, Leave the Competition Behind!

TRUSTED BY PROS - Join thousands of enthusiasts who rate it 4.8 stars for consistent, race-grade results.
FUEL ECONOMY REVIVAL - Restore lost power and improve mileage—because every drop counts.
KNOCK OUT ENGINE KNOCK - Say goodbye to damaging pinging and pre-ignition with advanced MMT formulation.
RACE READY OCTANE SURGE - Elevate your fuel’s octane rating by up to 3 numbers for peak engine performance.
EMISSION FRIENDLY FORMULA - Boost performance while reducing harmful emissions for a cleaner ride.

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, it’s designed for racing and high-demand applications, delivering cleaner emissions and enhanced engine efficiency.

Specifications

Asin	B072K4S96B
Best Sellers Rank	#30,464 in Automotive (See Top 100 in Automotive) #256 in Motor Oils
Brand	Royal Purple
Customer Reviews	4.8 4.8 out of 5 stars (262) 4.8 out of 5 stars
Date First Available	June 9, 2017
Item Model Number	11757
Item Weight	5.05 pounds
Manufacturer	Royal Purple
Manufacturer Part Number	11757
Product Dimensions	9.2 x 7.1 x 6.5 inches

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