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STP Octane Booster (5.25 fluid ounces), 78574, Fuel Additive

STP Octane Booster (5.25 fluid ounces), 78574, Fuel Additive

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: 395250229

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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

STP Octane Booster (5.25 fluid ounces), 78574, Fuel Additive

Specifications

Manufacturer	STP
Brand	STP
Product Dimensions	3.81 x 5.84 x 20.32 cm; 155 g
Item model number	78574
Manufacturer Part Number	78574
Position	Outside
Assembly Required	No
Voltage	12 Volts
Manufacturer	STP
Item Weight	155 g

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?

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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¥4533

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

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