Did the formula change? does this no longer contain pea?

Per ITW Global Brands response 7-17-23, "Multi-System Tune Up fuel additives contain CarbonClear which is the most advanced P.E.A. All our Gumout fuel additives contain equal parts PEA."

Is the shipping time of one to two months accurate?

I don't know. It would depend on the seller. Seems like a long time. Walmart delivery is like two days.

How often do I have to add this product to my vehicle’s gas tank?

Add it in every 2 to 3 fill-ups. It will probably take six months or more before you start noticing a difference. But, your gas mileage will improve, and your engine will run smoother. Just give it time. I went from 12 to 13 miles a gallon all the way to 18 to 22 miles a gallon today. It works!

How often can you use this product?

I've been using is for many years. First time, put an entire can in your fuel tank when you fill up. After that, I put about 1/3 to 1/2 with every fill up. I use it in my tractors, mowers, gas leaf blowers and edgers and boat. Since the boat sits up all winter without running, I usually put 3 cans in the tank the last time I run it. In addition to cleaning the entire fuel system, it also stabilizes the fuel so it doesn't break down and turn into lacquer. Also, if you buy fuel with ethanol in it (most gas has 10-15% ethanol in it), Gumout helps keep it from turning into a gel like substance in your fuel line. Ethanol comes from corn and soybeans, so if you leave it in fuels line without a product like Gumout, it can set up fuel related issues. Hope that helps! Eddy

Gumout 510011 6pk Multi System Tune Up 16 Fl Oz

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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€ 178.17

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Tune up today, dominate the road tomorrow!

LONG LASTING PROTECTION - Stabilizes fuel and oil for up to 2 years, ensuring your engine stays fresh even during storage.
POWERFUL CARBON CLEANUP - Advanced PEA formula eradicates carbon buildup across fuel and oil systems for peak engine efficiency.
RUST CORROSION DEFENSE - Fights ethanol-related rust and corrosion, extending engine life and reliability.
EMISSION READY PERFORMANCE - Helps you breeze through emissions tests while lubricating upper cylinders for smoother rides.
UNIVERSAL FUEL SYSTEM TUNE UP - Optimized for gas, ethanol/flex fuel, diesel & biodiesel engines—one solution for all your rides.

Gumout's 510011-6PK Multi-System Tune-Up is a 6-pack of 16 fl. oz. fuel system cleaners designed for gas, ethanol/flex fuel, diesel, and biodiesel engines. Featuring a powerful PEA formula, it removes carbon deposits, stabilizes fuel and oil for up to 2 years, improves fuel economy, lubricates engine components, and combats ethanol-related rust and corrosion—perfect for maintaining peak engine performance and passing emissions tests.

Reviews

S**S

Good product but Shipping is horrible!

I like the product but damaged can are a issue!

25.05.2026

A**R

Must have if you own a Mini Cooper turbo.

This is the only product I’ve found that has enough P.E.A. to clean and prevent the excessive carbon buildup that the Mini Cooper turbo engines are notoriously known for. I run a full bottle through the gas tank just before each oil change and use a third of a bottle in the gas tank at each fill up for maintenance in between oil changes. I have a 2010 Mini Convertible & a 2014 Countryman. Keeps both cars running like new.

17.09.2025

M**T

NO GIMMICKS !

Definitely feel the difference! No more sluggish acceleration and Definitely worth the money good quality stuff in a can.. notice better mpg

23.12.2025

D**.

Keep it clean

Been using multi system tune up for years. Kia manufacturer requires a fuel treatment every oil change and this has been the one I use. 140k on my 3.3L and no issues.

31.10.2025

M**C

Good case

I use it to hold signed pool cue balls and is a great fit. Only thing I world change is the ability to get a really good seal on it without having to use some kind of glue.

28.09.2025

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1 month ago

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

€ 178.17

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered 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 Italy.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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1 month ago

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ASIN	B01876F1GQ
Brand	Gumout
Customer Reviews	4.6 4.6 out of 5 stars (389)
Date First Available	3 July 2018
Item Weight	2.83 Kilograms
Item model number	510011-6PK
Manufacturer	Gumout
Manufacturer Part Number	510011-6PK
Model	510011-6PK
Product Dimensions	20.62 x 14.3 x 20.65 cm; 2.83 kg

Gumout 510011-6PK Multi-System Tune-Up, 16 fl. oz. (Pack of 6)

Description

Specifications

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Common Questions