how do i use it ? is it safe for any car ?

I use it in combination with Marvel Mystery oil to make an fuel system cleaner. 5 parts MM to 1 part Heet. Works well in 3 cars I own - 2 Japanese and 1 German made.

Red bottle versus yellow bottle?

I hope 5 years later David was able to find a new job. You can use this in any gasoline or diesel engine. The difference is the ISO (red bottle) contains isopropyl alcohol. The yellow bottle contains methanol. Isopropyl alcohol evaporates faster therefore removing the water faster. Methanol is better at lowering the water's freezing point. They both do both but just different ways.

Can I use these in my Yamaha outboard?

Yes, any motor,engine that runs on gasoline, I used it on a snow blower

Isopropyl vs methanol Heet for removing water, one combine the water so it can be burned out, the other does not. Anybody know which one?

At one point isopropyl was the only one recomended for fuel injected and other engines. I think it has less acidity than ethanol and methanol. It is the only one I keep in stock because it's safe and effective in all engines. I don't have to worry about someone using the wrong one.

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

Iso-HEET

Product ID: 6618410

Details

Brand
Heet
Exterior Finish
Plastic
Inlet Connection Size
2.2 Inches
Inlet Connection Type
Compression
Item dimensions L x W x H
8.35 x 3.25 x
Material
Plastic

⛽Treats 20 gallons per 12 oz bottle

💧5x water absorption vs. regular dryers

🛡️Prevents rust & corrosion

¥2177

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

💨 Keep your engine running smooth and dry—because your ride deserves the best!

FREEZE UP DEFENSE - Prevents fuel line freeze-up in cold weather, so you never get stranded when it matters most.
EASY POUR PRECISION - 12 oz bottle with a user-friendly design treats up to 20 gallons of fuel for hassle-free maintenance.
INJECTOR CLEANING BOOST - Cleans fuel injectors every 5,000 miles to optimize engine performance and improve gas mileage.
ULTIMATE WATER REMOVAL POWER - Absorbs 5 times more water than standard fuel additives to keep your engine dry and efficient.
YEAR ROUND ENGINE PROTECTION - Prevents rust and corrosion, ensuring your fuel system stays pristine no matter the season.

Heet Iso-HEET is a premium 12 fl. oz. fuel additive that removes water, prevents rust and corrosion, and cleans injectors in both gas and diesel engines. It absorbs up to 5 times more water than regular gas dryers, treats 20 gallons of fuel per bottle, and is designed for year-round use to improve engine performance and gas mileage.

Specifications

ASIN	B000V4HC7Y
Best Sellers Rank	#3,481 in Automotive ( See Top 100 in Automotive ) #18 in Antifreezes & Coolants
Brand Name	Heet
Customer Reviews	4.7 4.7 out of 5 stars (3,345)
Exterior Finish	Plastic
Global Trade Identification Number	00073905282024
Included Components	Iso-heet Premium Fuel Line Antifreeze Bottle
Inlet Connection Size	2.2 Inches
Inlet Connection Type	Compression
Item Dimensions	8.35 x 3.25 x 2.2 inches
Item Type Name	ISO Heet Anti-freeze
Item Weight	0.15 Pounds
Manufacturer	Gold Eagle Co.
Manufacturer Part Number	770-196
Manufacturer Warranty Description	1 Year Limited
Material Type	Plastic
Model Number	770-196
Number of Pieces	1
Number of Ports	1
Outlet Connection Size	2.2 Inches
Outlet Connection Type	Pour
Size	12 Ounce
Thread Size	2.2 inches
Thread Type	Standard bottle thread
UPC	073905282024
Unit Count	12.0 Fluid Ounces
Valve Type	check valve

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

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day 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.