STP Octane Booster, Bottled Fuel System Cleaner Restores Lost Power and Acceleration, 5.25 Oz, STP

STP Octane Booster, Bottled Fuel System Cleaner Restores Lost Power and Acceleration, 5.25 Oz, STP

Q: 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.

Q: 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

Q: 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

Q: 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.

4.5/5

Product ID: 16201439

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⛽Boosts octane for peak engine power

📈Improves MPG by optimizing fuel efficiency

⚙️Cleans fuel intake for smoother acceleration

Frequently Bought Together

STP Octane Booster for Gasoline Fuel Additive, 5.25 oz, Fuel Additive That Raises Octane Levels and Cleans the Fuel Intake System to Restore Lost Power and Acceleration, Help Improve MPG

STP Ultra 5 In 1 Fuel System Cleaner and Stabilizer, Deep Cleans Fuel System and Fights Engine Friction, 12 FlOz

STP Complete Fuel System Cleaner, Fuel Cleaner Deep Cleans Entire Fuel System, 5.25 Oz, Multicoloured, 1 Count (Pack of 1)

Description

⛽ Ignite Performance, Slash Fuel Waste, Own the Road!

ENGINE DETOX - Advanced fuel intake cleaning clears deposits, ensuring seamless fuel flow and responsive acceleration.
EASY ROUTINE BOOST - Just one 5.25 oz bottle treats up to 15 gallons—make it your go-to fuel additive every fill-up.
POWER UP YOUR RIDE - MMT + Synthetic Tech elevates octane, reducing engine knock and unlocking hidden horsepower.
UNIVERSAL COMPATIBILITY - Works flawlessly with all gasoline engines, including modern cap-less fuel systems—no exceptions.
FUEL ECONOMY GAMECHANGER - Jet-fuel-grade carrier enhances combustion efficiency, helping you squeeze more miles per gallon.

STP Octane Booster is a premium 2-in-1 fuel additive combining MMT and synthetic technology to raise octane levels, clean your fuel intake system, and restore lost engine power and acceleration. Compatible with all gasoline engines including cap-less systems, it improves fuel efficiency and reduces knocking, making it an essential upgrade for every fill-up.

Specifications

Manufacturer	STP
Brand	STP
Model	78574
Item Weight	5.5 ounces
Product Dimensions	1.5 x 2.3 x 8 inches
Item model number	78574
Is Discontinued By Manufacturer	No
Exterior	[[Not Applicable]]
Manufacturer Part Number	78574
Position	Outside
Voltage	12 Volts

Have a Question? See What Others Asked

How many gallons does it treat?

does this work on a 2 stroke?

Is this safe for use with catalytic converters?

Will this stuff boost 93 octane to 95?

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