How many gallons does it treat?

The front of the container states "Treats up to 21 gallons" -- my husband uses this product in our 1965 Mustang, which has a tank size of 16 gallons. Depending on how often he drives the car and fills the gas tank, he uses 1 bottle with each fill up. I hope this answers some of your question.

does this work on a 2 stroke?

Does your 2 stroke recommend a higher octane - 89+ and you can't get the fuel? if so, use it

Is this safe for use with catalytic converters?

I am using it in a 66 Mustang and a 73 Z28 neither have converters, so not sure

Will this stuff boost 93 octane to 95?

Yes, I think it is a gain of just under 2.5 octane numbers when added to 12 or 14 gallons.

Stp Octane Booster For Gasoline Fuel Additive Restore Lost Power

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Description

⛽ Power up your ride, clean your fuel, and leave the competition behind!

TRUSTED PROVEN - Top-rated with 4.5 stars and thousands of happy drivers
DUAL ACTION FORMULA - Boosts octane while cleaning your fuel system simultaneously
IDEAL FOR REGULAR USE - One 5.25 oz bottle treats up to 15 gallons of gasoline
EFFORTLESS POWER BOOST - Just pour before refueling—no mixing needed
MAXIMIZE ENGINE PERFORMANCE - Restores lost horsepower and smooths acceleration

STP Octane Booster is a premium 2-in-1 fuel additive that increases octane levels and cleans your fuel intake system to restore engine power. Easy to use with no mixing required, one 5.25 oz bottle treats up to 15 gallons of gasoline, making it perfect for regular maintenance. Highly rated and trusted by thousands, it’s a must-have for drivers seeking peak performance and efficiency.

Specifications

ASIN	B004MBFTYK
Best Sellers Rank	#18,782 in Automotive ( See Top 100 in Automotive ) #5 in Octane Boosters
Brand	STP
Customer Reviews	4.5 4.5 out of 5 stars (1,424)
Date First Available	February 4, 2011
Exterior	[[Not Applicable]]
Item Weight	4.9 ounces
Item model number	78574
Manufacturer	STP
Manufacturer Part Number	78574
Model	78574
Position	Outside
Product Dimensions	1.5 x 2.3 x 8 inches
Voltage	12 volts

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STP Octane Booster for Gasoline Fuel Additive, Restore Lost Power, 5.25 oz

Description

Specifications

Common Questions