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 Restore Horsepower Boosts 155 Ml

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HK$155

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Description

🚗💨 Unleash horsepower and silence the knock—because your drive deserves the best!

POWER UP YOUR RIDE - Boosts octane to unlock hidden engine performance and smoother acceleration.
OPTIMIZED TREATMENT - Treats up to 28 gallons per bottle, making every fill-up a performance upgrade.
STREET READY FORMULA - Two-in-one booster and cleaner designed for regular use with cap-less gas systems.
KNOCK OUT ENGINE PING - Reduces knocking and pinging for a quieter, more efficient drive.
CLEAN FUEL CLEAN GAINS - Removes deposits to keep your fuel intake system running like new.

STP Octane Booster is a premium fuel additive that boosts octane levels, reduces engine knocking, and cleans the fuel intake system to restore lost horsepower. Compatible with cap-less gas systems, it treats up to 28 gallons per bottle and is designed for regular use to maintain peak engine performance and smoother acceleration.

Specifications

ASIN	B004MBFTYK
Best Sellers Rank	#57,325 in Automotive ( See Top 100 in Automotive ) #263 in Oil & Fluid Additives
Brand	STP
Customer Reviews	4.5 4.5 out of 5 stars (1,327)
Date First Available	14 August 2012
Item Weight	140 g
Item model number	78574
Manufacturer	STP
Manufacturer Part Number	78574
Model	Octane Booster
Position	Outside
Product Dimensions	3.81 x 5.84 x 20.32 cm; 140 g
Voltage	12 Volts

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HK$155

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Stp Octane Booster Restore Horsepower, Boosts (155 ML)

Description

Specifications

Common Questions