You pour entire bottle into your gas tank, right before you fill up. Then fill up your vehicle with gas afterwards to top it off and give a good mixture. Then drive like normal.

I have a direct injector system in my Honda ridgeline will it clean it?

Thank you for submitting your question! the product is effective on all gasoline engines including direct injector engines. For any further information please reach out to us on 1-800-383-7323 or email us on customersupport@energizer.com to assist you better. Energizer Consumer Services

Will it work on a boat?

I don't know what kind of fuel you using on your boat but if is the same as the regular fuel we use in the cars you should be good to go. Something you need to do special mixes for small engines so make sure you double check.

Does this clean spark plugs?

Thank you for submitting your question! Yes, the product will clean spark plugs. For any further information please reach out to us on 800-776-1530 or autohelpline@energizer.com to assist you better. STP Consumer Services. Thank you!

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Ultra 5-in-1 Fuel System Cleaner and Fuel StabilizerÃ‚ (12 fl. oz.)

Product ID: 721182079

Details

Brand
STP
Item form
Liquid
Material features
Unscented
Scent
Unscented
Specific uses for product
engines

⛽3X cleaning agents vs premium gas

⚙️Restores 95% injector performance

🛡️Prevents corrosion & ethanol deposits

R1156

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⛽ Unlock your engine’s hidden potential—clean smarter, drive stronger!

LOW ODOR UNSCENTED FORMULA - Enjoy powerful performance without the harsh chemical smell—perfect for everyday use.
ENGINEERED FOR MODERN ENGINES - Compatible with turbo, direct inject, hybrid, and cap-less gas systems—future-proof your ride.
DEEP CLEAN FOR PEAK EFFICIENCY - Removes 61% of harmful intake valve deposits to boost engine power and fuel economy.
TRIPLE STRENGTH CLEANING POWER - Contains 3X the cleaning agents compared to premium gasoline for unmatched fuel system care.
FUEL STABILIZER FOR LONG TERM FRESHNESS - Keeps fuel fresh during storage, preventing costly engine issues down the road.

STP Ultra 5-in-1 Fuel System Cleaner and Fuel Stabilizer is a scientifically formulated liquid additive that deep cleans fuel systems with 3X the cleaning agents of premium gasoline, removing 61% of intake valve deposits and restoring 95% of injector performance. Compatible with modern gasoline engines including turbo, direct inject, hybrid, and cap-less systems, it also stabilizes fuel during storage and prevents corrosion and ethanol buildup—all in a low odor, unscented formula.

Specifications

ASIN	B00K5L8H1I
Best Sellers Rank	#22,049 in Automotive ( See Top 100 in Automotive ) #58 in Automotive Fuel System Cleaners
Brand Name	STP
Contains Liquid Contents?	Yes
Customer Reviews	4.6 4.6 out of 5 stars (1,870)
Global Trade Identification Number	00071153174375, 10071153174372
Included Components	STP Auto Performance Aid
Item Form	Liquid
Item Type Name	Auto Performance
Item Volume	12 Fluid Ounces
Item Weight	0.2 Kilograms
Manufacturer	STP
Material Features	Unscented
Model Number	18410B
Number of Items	1
Part Number	18410B
Scent	Unscented
Size	12 Fl Oz (Pack of 1)
Special Features	Low Odor
Specific Uses For Product	engines
Surface Recommendation	Aluminum
UPC	071153174375
Unit Count	12 Milliliters

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