Can this be added to basic unleaded petrol to increase the octane rating in the event that super unleaded fuel is not available?

i have been using it for a long time now and i can tell you that i have noticed a difference and it wont do any harm hope this helps.

Is it safe to use on a 510 bhp alfa giulia quadrifoglio?

Don't see why not I yse it on a 480bhp supercharged duratec race engine swith no issues

How much octane doe this increase the fuel by? I can see no detail abotu this on their website.

No sure but cuts out noise so makes the engine run much safer

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STP Power Booster 200ml

Product ID: 50391411

Details

Brand
STP
Contains liquid contents
Yes
Item form
Liquid
Item volume
200
Item weight
200 Grams
Number of items
1

⛽Boosts octane rating +5%

🚗Improves MPG by up to 12%

⚙️Cleans combustion chamber & fuel system

4481 som

Duties & taxes included

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Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Ignite your drive with every drop!

ENGINE DETOX - Effectively cleans fuel injectors, intake valves, and combustion chambers to reduce knocking and hesitation.
TRUSTED LEGACY - Backed by 60+ years of STP innovation, delivering reliable performance enhancement every fill-up.
POWER UP YOUR PETROL - Raises octane rating for sharper engine response and smoother acceleration.
FUEL EFFICIENCY BOOST - Proven to increase miles per gallon by up to 12%, saving you money on every tank.
UNIVERSAL COMPATIBILITY - Safe for petrol engines with catalytic converters, turbos, and superchargers—just skip two-stroke engines.

STP Power Booster is a 200ml liquid fuel additive designed to increase petrol octane levels, clean critical engine components, and enhance overall performance. Suitable for modern petrol engines including those with turbos and catalytic converters, it reduces engine knocking and hesitation while improving fuel economy by up to 12%. Trusted for over six decades, this booster transforms sluggish engines into smooth, responsive powerhouses with every tank.

Specifications

ASIN	B008R9GLAE
Best Sellers Rank	49,464 in Automotive ( See Top 100 in Automotive ) 535 in Car Engine Oils
Brand Name	STP
Container Type	Bottle
Contains Liquid Contents?	Yes
Customer Reviews	4.4 4.4 out of 5 stars (128)
Global Trade Identification Number	05020144800569
Included Components	Power Booster
Item Form	Liquid
Item Type Name	Power Booster
Item Volume	200 Millilitres
Item Weight	200 Grams
Manufacturer	AutoMotion Factors Limited
Model Number	ST56200EN
Number of Items	1
Part Number	ST56200EN
Size	1 ml (Pack of 1)
Special Features	Fuel Additive
Specific Uses For Product	Engine
Surface Recommendation	Fuel injectors, intake valves, and combustion chambers
Unit Count	1.0 millilitre

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