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.

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Reviews

M**T

Keeps car running.

This is good works fine in cold weather. Was 17 below & the van started right away,

17.02.2026

S**M

A Must-Have for Improved Engine Performance and Gas Mileage!

I recently tried **Iso-HEET Water Remover and Premium Fuel Line Antifreeze** and I’m very impressed with the results! I added it to my gas tank as directed, and I immediately noticed a smoother engine performance. My engine starts up more easily, even in cold weather, and it runs much more efficiently overall. I especially love how it helps to remove water from the fuel line, preventing any potential issues with fuel system freezing or corrosion. I’ve also noticed an improvement in my gas mileage. It feels like I’m getting more miles per gallon, which is a great bonus. The **Injector Cleaner** aspect is another huge plus—my car runs cleaner and more efficiently after using this product. At 12 fl. oz., the bottle is the perfect size for multiple uses and gives great value for the price. I highly recommend this product to anyone looking to improve their vehicle’s performance and extend its longevity. Definitely a great addition to my car care routine!

7.03.2025

C**R

Works great for those cold temps!

Use this every year for the cold temperatures, it works great and easy to use.

12.02.2026

G**H

Worth It

Always have a few on hand for the winter as prep for freezing temps. I always make sure my kids have bottles in their cars and use them.

6.03.2026

D**S

Does the job!!

Had water in my motorcycle gas tank from a low grade station. I use this and problem solved!!

26.02.2026

L**Y

A good product and a good price

We bought these at our local NAPA and they were at least double the price of buying on Amazon. So I am glad I can buy these here. Definitely a good product. This did not leak.

21.12.2025

P**N

This really works for removing condesation from your gas tank and helps to keep your injectors clean

great stuff no leakage easy to put into gas tank size of bottle is great for a full tank of gas and continues to work for quite some time.

26.11.2025

B**D

Removed water from my gas can

I had purchased some gas from a small convenience store and stored it in my gas can. I had put some of the gas in my lawnmower and weedeater and noticed they started running rough like maybe there was some water in the gas. My friend suggested to try some heat and I put it in both and they started running great again. The heat removed the moisture like it's known for. Great product and I have bought additional bottles to have on hand. Great product

24.10.2025

A**.

Very good

18.07.2025

ASIN	B000V4HC7Y
Best Sellers Rank	#2,451 in Automotive ( See Top 100 in Automotive ) #15 in Antifreezes & Coolants
Brand	Heet
Customer Reviews	4.7 4.7 out of 5 stars (3,171)
Date First Available	August 17, 2005
Exterior Finish	Plastic
Global Trade Identification Number	00073905282024
Inlet Connection Size	2.2 Inches
Inlet Connection Type	Compression
Is Discontinued By Manufacturer	No
Item Weight	2.4 ounces
Item dimensions L x W x H	8.35 x 3.25 x 2.2 inches
Item model number	770-196
Manufacturer	Gold Eagle Co.
Manufacturer Part Number	770-196
Material	Plastic
Model	770-196
National Stock Number	6850-01-607-0543
Number of Ports	1
Outlet Connection Size	2.2 Inches
Outlet Connection Type	Pour
Product Dimensions	8.35 x 3.25 x 2.2 inches
Special Features	Absorbs 5 times more water than regular gas dryers, Designed for year round use in all 2-cycle and 4-cycle gas and diesel engines, No.1 selling brand of premium gas-line antifreeze, Prevents rust and corrosion, Removes water from fuel system
UPC	073905282024

Iso-HEET Water Remover And Premium Fuel Line Antifreeze + Injector Cleaner Helps Increase Gas Mileage Improves Engine Performance Year Round Performance, 12 fl. oz. (28202) , Red

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