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!

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

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

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

Product ID: 260935776

Details

Brand
STP
Contains Liquid Contents
Yes
Global Trade Identification Number
Item Volume
12 Fluid
Item Weight
0.2 Kilograms
Net Quantity
354.88

⛽5-in-1 multi-action formula

🚗boosts MPG up to 20%+

🛢️12 fl. oz. concentrated dose

¥13614

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

Description

⛽ Drive smarter, save bigger — fuel your journey with STP Ultra!

TRUSTED BRAND QUALITY - STP’s proven formula with 4.6-star rating from 1,800+ users ensures reliability and results.
FUEL EFFICIENCY BOOSTER - Restores and improves miles per gallon, saving you money on every tank.
LONG LASTING PROTECTION - Keeps fuel fresh and engine running smoothly even during long storage or low-use periods.
PERFECT FOR ROAD WARRIORS - Ideal for highway drivers and road trips, maintaining engine health and consistent MPG on the go.
MULTI ACTION FUEL SYSTEM POWER - Cleans injectors, stabilizes fuel, and optimizes combustion for peak engine performance.

STP Ultra 5-in-1 Fuel System Cleaner and Fuel Stabilizer (12 fl. oz.) is a concentrated automotive additive designed to clean fuel injectors, stabilize fuel, and improve engine efficiency. Trusted by thousands with a 4.6-star rating, it helps restore MPG by up to 20%, protects engines during storage, and ensures smoother performance on long drives. Made in the USA, this premium formula is a must-have for millennial professionals who demand reliability and cost savings from their vehicle maintenance.

Specifications

ASIN	B00K5L8H1I
Best Sellers Rank	#121,132 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #120 in Petrol Additives
Brand Name	STP
Contains Liquid Contents?	Yes
Country of Origin	USA
Customer Reviews	4.6 4.6 out of 5 stars (1,859)
Global Trade Identification Number	00071153174375, 10071153174372
Importer Contact Information	Creative International, Unit 1 Janta Compound, Lower-Parel ( West ), Mumbai 400013 , India
Item Volume	12 Fluid Ounces
Item Weight	0.2 Kilograms
Model Number	18410B
Part Number	18410B
UPC	071153174375
Unit Count	354.88 Milliliters

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Fatima A.

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

3 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

¥13614

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews