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

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

S$216

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered 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 SINGAPORE.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

🚗 Tune up your engine, tune into peak performance!

EMISSION TEST READY - Helps your vehicle pass emissions testing with cleaner combustion and lubricated cylinders.
FUEL OIL STABILIZATION - Keeps your fuel and oil fresh for up to 2 years, preventing corrosion and rust.
MULTI APPLICATION FLEXIBILITY - Use in fuel tanks, oil crankcases, or vacuum intake systems for comprehensive engine care.
UNIVERSAL ENGINE COMPATIBILITY - Optimized for gas, diesel, ethanol & biodiesel engines—one solution for all your rides.
ADVANCED CARBON DEPOSIT REMOVAL - Powered by PEA to dissolve stubborn carbon buildup, restoring peak engine performance.

Gumout 510011-6PK Multi-System Tune-Up is a powerful 16 fl. oz. fuel and oil additive pack of 6 that cleans carbon deposits, stabilizes fuel and oil for up to 2 years, and improves engine performance across gas, diesel, ethanol, and biodiesel engines. Featuring PEA technology, it enhances fuel economy, lubricates upper cylinders, fights corrosion, and supports emissions compliance—ideal for professional-grade engine maintenance.

Specifications

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

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

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Rajesh P.

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

2 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.