15 gallon tank. How much of this product do I need?

This is not medicine where dosage is important. Drop 1 bottle into any gas tank, and fill it up so the new gas will mix the product with the whole tank.

What is considered "high mileage"? I am at 30k miles.

depends on the car company, fiat 75K is it, new engine please, mercedes, lexus types 150K, 200K diesel.

Can this be used at 17,000 miles. I have a honda civic 2020

Can be used after mileage where you think carbon from combustion has accumulated. 17k appears to be enough driving where carbon may have accumulated. Others say a good gas with detergent is good enough, and no additive is needed.

What is the EPA level?

Light to moderate with a front moving noeth fron Altuna

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Gumout High Mileage Fuel Injector Cleaner

Gumout High Mileage Fuel Injector Cleaner

Product ID: 48822345

Details

Brand
Gumout
Exterior finish
Machined
Global Trade Identification Number
Inlet connection type
Screw-on
Item dimensions L x W x H
21.9 x 4.4 x
Manufacturer
PENNZOIL DIV.

⛽Cleans engines 75,000+ miles

📈Boosts fuel economy & power

⚙️Prevents carbon buildup

A$28

Duties & taxes included

In stock

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Description

⛽ Unlock your engine’s hidden potential—because every mile deserves peak performance!

MAXIMIZED MILEAGE - Enhances fuel efficiency and engine performance, saving you money at the pump.
ENGINE REVIVAL POWER - Eradicates stubborn carbon deposits in high-mileage engines for a like-new feel.
ECO CONSCIOUS FORMULA - Designed to deliver results while minimizing long-term environmental impact.
FUTURE PROOF FUEL SYSTEM - Stops carbon buildup on injectors, valves, and ports before it starts—keep your engine pristine.
TRUSTED AMERICAN QUALITY - Proudly made in the USA with a 4.5-star rating from hundreds of satisfied drivers.

Gumout High Mileage Fuel Injector Cleaner is a premium automotive additive designed to remove carbon deposits from engines with over 75,000 miles. It prevents future buildup on fuel injectors, intake valves, and ports, maximizing both engine performance and fuel economy. Made in the USA and highly rated by users, it’s an essential maintenance product for professionals seeking to extend engine life and efficiency.

Specifications

ASIN	B0041E8VZ2
Best Sellers Rank	340,213 in Automotive ( See Top 100 in Automotive ) 1,753 in Fuel System Tools
Brand	Gumout
Brand Name	Gumout
Contains Liquid Contents?	No
Contains liquid contents	No
Country of Origin	USA
Customer Reviews	4.5 out of 5 stars 388 Reviews
Global Trade Identification Number	00071948900967
Item Volume	177.6 Millilitres
Item Weight	0.2 Grams
Item volume	177.6 Millilitres
Item weight	0.2 Grams
Model Number	800001363
Number of Items	1
Number of items	1
Part Number	510013
Size	1 count (Pack of 1)
UPC	071948900967
Unit Count	1.0 count
Unit count	1.0 count

Reviews

G**S

very nice product.

Looks like a great product, but I have not used it as yet.

7.03.2026

W**E

فعال جداً

تم تجربته في سيارتي وهذي تجربتي على ربع تانكي بنزين وبعد خمسة أيام تقريباً حسيت بالفرق العزم والصرفيه ، أنصح فيه

30.11.2024

F**L

No difference

I used on Nissan sunny 2016 model GCC car, but there is no difference

21.01.2024

S**Y

Not recommended

I used it and didn’t feel any gas mileage performance

19.03.2025

Y**N

Not recommended at all

engine stopped all of sudden right after using gumout and had to visit the dealer to fix it

22.03.2022

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Rajesh P.

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

2 days ago

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