What is the percentage of PEA in this High Mileage product?

Per the MSDS Polyetheramine: 10 - 30% I've come to understand that this covers all products, this one and there is a larger 12 oz product. They have treat rates that are not the same which leads me to believe that this product is likely 25-30%PEA. While the 12 oz product is ~15% PEA.

The pea is 10% to 24% for gumout. redline is 28% to 32% the only other that has pea is chevron techron all good but redline is best agree?

Per the Gumout MSDS Polyetheramine: 10 - 30% I've come to understand that this covers all products, this one and there is a larger 12 oz product. They have treat rates that are not the same which leads me to believe that this product is likely 25-30%PEA. While the 12 oz product is ~15% PEA. I can't seem to pull up a recent MSDS for Redline, but prior versions say 25-30% or <30%. So, bottom line is they are comparable on a cost per PEA basis.

Will it affect smog test if i use it couple days before?

If you want to be safe, run all that fuel out before the test. That way you will get all the cleaning benefit. Honestly, I do not think the chemicals will change the test if that was your question. The Cat converter will burn most everything.

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Gumout 510023 Regane High Mileage Fuel System Cleaner, 6 oz. (Pack of 6)

Q: Will it affect smog test if i use it couple days before?

If you want to be safe, run all that fuel out before the test. That way you will get all the cleaning benefit. Honestly, I do not think the chemicals will change the test if that was your question. The Cat converter will burn most everything.

Product ID: 260938590

Details

Brand
Gumout
Item Volume
6 Fluid Ounces
Number of Items
6
Item Weight
2.6 Pounds
Contains Liquid Contents
Yes
Global Trade Identification Number

⛽Boosts fuel economy in 1 fill-up

⚙️3-detergent CarbonClear tech

🛡️Fights corrosion & reduces wear

€ 216.42

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Description

⛽ Clean fuel, smooth ride, smarter miles — don’t let your engine miss out!

FUEL ECONOMY BOOSTER - Maximizes MPG with just one tank treatment—feel the difference on every drive
OEM SAFE UNIVERSAL FIT - Works seamlessly with all gasoline engines without voiding manufacturer warranties
CORROSION CARBON DEFENSE - Protects against ethanol, water corrosion, and prevents future carbon build-up
HIGH MILEAGE ENGINE SAVIOR - Specifically conditions upper cylinders to reduce friction and wear beyond 75,000 miles
TRIPLE ACTION CARBON CLEAR FORMULA - Advanced PEA + PIBA + patented tech for unmatched deposit removal

Gumout Regane High Mileage Fuel System Cleaner uses a cutting-edge CarbonClear triple-detergent formula to deeply clean fuel injectors, intake valves, and combustion chambers in vehicles over 75,000 miles. It reduces upper cylinder friction, fights ethanol and water corrosion, and prevents future carbon deposits, all while boosting fuel economy in just one fill-up. Safe for turbocharged engines and guaranteed not to void OEM warranties, this 6-pack liquid cleaner is a must-have for maintaining peak engine performance and longevity.

Specifications

ASIN	B07RJ2312P
Brand	Gumout
Brand Name	Gumout
Contains Liquid Contents?	Yes
Country of Origin	USA
Customer Reviews	4.6 out of 5 stars 481 Reviews
Global Trade Identification Number	30071948100238, 30071948101389
Included Components	Fuel System Cleaner (6)
Item Form	Liquid
Item Type Name	Gumout 510023 Regane High Mileage Fuel System Cleaner, 6 oz. (Pack of 6)
Item Volume	6 Fluid Ounces
Item Weight	1.18 kg
Manufacturer	Gumout
Model Number	510023W-6PK
Number of Items	6
Part Number	510023W-6PK
Recommended Uses For Product	Fleet and plant maintenance.
Size	177.44 ml (Pack of 6)
Specific Uses For Product	Fleet and plant maintenance.
Surface Recommendation	Miscellaneous

Reviews

A**R

Good cleaner

Works great for cleaning fuel system. I use it in all my gasoline cars and trucks.

12.03.2026

L**L

Did not eliminate engine knock, but did improve it on my 2014 prius v

Backstory, I should have used fuel system earlier in my car. At about 120k, the engine started knocking, especially with the AC running. I have used predominantly Sam's Club gas, 87 octane. I never used fuel system cleaner until then (I have in my other cars, but just never did in the Prius. With the gas practically empty, I put in a bottle and only put in 4-5 gallons of gas. It definitely helped with the engine knocking. I now use it regularly (everytime the engine starts knocking again every few thousand miles.) I did originally try this on an empty tank and filled it up the tank......did not stop the engine knocking. Thus now I only put in a few gallons. Did it improve mileage....NOPE. I did not see any performance increase.

9.02.2024

S**I

Good fuel system cleaner

Reorder additional. Package had no leakage. Great value for the price and quantity. Seems to help with my mileage at 178k, using every 3k.

18.06.2026

A**R

It’s ok. Better versions available

It’s ok. Better cleaners out there

18.06.2026

A**1

Works i think

Went from 15.7 to 17.1 mpg. Only thing i did diff was add this stuff once a month.

7.07.2025

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€ 216.42

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

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