
HEET is a premium gas-line antifreeze that can be used all year round in all types of gasoline, 2-cycle mix, and diesel engines. The product is designed to prevent freezing gas lines and remove water and condensation. It is safe for use on catalytic converters and fuel injectors and can improve engine performance. The Iso-HEET variant is a water remover and fuel line antifreeze that also acts as an injector cleaner. It is rated highly by users who have noticed smoother engine performance and improved gas mileage.
| Characteristics | Values |
|---|---|
| Brand | HEET, ISO-HEET |
| Use | Fuel injector cleaner, water remover, fuel line antifreeze |
| Use cases | Designed for year-round use in all 2 and 4 cycle gas and diesel engines |
| Absorbs | Absorbs five times more water than regular gas-line antifreeze |
| Use with | Use with every fill-up in winter and at least every 5,000 miles in summer to clean injectors |
| Bottle size | 12 fl. oz. |
| Bottle treats | 20 gallons of fuel |
| Pouring instructions | Pour the entire contents into the tank before or after filling with fuel |
| Safety | Safe on catalytic converters and fuel injectors |
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What You'll Learn

Iso-HEET® Water Remover
Iso-HEET® is safe for use with catalytic converters and fuel injectors and can be used with every fill-up in freezing temperatures or whenever water absorption is required. The product comes in an easy-pour 12-ounce bottle, treating 20 gallons of fuel. It is recommended to use the entire bottle before or after filling the tank with fuel and with every fill-up in winter. In summer, it should be used at least every 5,000 miles to clean injectors.
Overall, Iso-HEET® Water Remover is a highly-rated and effective solution for removing water from fuel systems, improving engine performance, and maintaining fuel injector cleanliness. It is safe for use in various engine types and climates and offers an easy and inexpensive way to ensure the proper functioning of vehicles and equipment.
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Fuel Line Antifreeze
One popular brand of fuel line antifreeze is HEET, which offers two products: HEET (yellow) and Iso-HEET (red). Both products are designed to be used year-round and can treat up to 20 gallons of gasoline. However, Iso-HEET is recommended for all types of gasoline, 2-cycle mix, and diesel, while HEET (yellow) is not recommended for 2-cycle mix or diesel.
Iso-HEET is a premium water remover and injector cleaner that can absorb up to five times more water than regular gas-line antifreeze. It is added to the fuel tank, where it mixes with any water present, preventing it from freezing in the line. This mixture of gasoline, Iso-HEET, and water is then burned during combustion inside the engine. In addition to preventing freezing, Iso-HEET also cleans fuel injectors and carburetors, leading to fast starts and smooth-running engines. It is safe to use on catalytic converters and fuel injectors and can help improve engine performance and gas mileage.
HEET (yellow) is designed to prevent and treat freezing gas lines and remove some water. While it does not absorb as much water as Iso-HEET, it is still an effective product for protecting against temperature extremes and water in gas lines.
Both products have received positive reviews from customers, with many people noting their effectiveness in improving engine performance and keeping fuel injectors clean. Some reviewers specifically mention that HEET and Iso-HEET have helped solve issues caused by bad gas or condensation in their fuel tanks.
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Injector Cleaner
The HEET brand offers two products that can be used as fuel injector cleaners: the HEET (yellow) and the ISO-HEET (red). While the former is designed to prevent and treat freezing gas lines and remove some water, it is not recommended for 2-cycle mix or diesel engines. On the other hand, the ISO-HEET is a premium water remover and injector cleaner that can be used all year round in all types of gasoline, 2-cycle mix, and diesel engines. It is also safe for catalytic converters and fuel injectors.
The ISO-HEET formula, when added to the fuel tank, remains in the solution with the gasoline and absorbs five times more water than regular gas-line antifreeze. This prevents water in the gas tank from freezing in winter and removes water and condensation in warm, wet weather. The entire mixture of gasoline, ISO-HEET, and water is then burned during combustion inside the engine.
One bottle of HEET or ISO-HEET treats up to 20 gallons (75.7 L) of gasoline. It is recommended to use it with every fill-up in winter and at least every 5,000 miles in summer to clean injectors. The product comes in an easy-pour 12-ounce bottle.
Several customers have given the ISO-HEET injector cleaner positive reviews, citing improved engine performance, smoother engine operation, and increased gas mileage. Some have also mentioned that it helps remove water from the fuel line, preventing issues with fuel system freezing and corrosion.
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HEET® Gas-Line Antifreeze
HEET® is an effective water remover, preventing water from freezing in gas lines during winter and removing condensation in warm, wet weather. This helps to prevent issues with fuel system freezing and corrosion, which can lead to engine stuttering and other performance issues. By removing water and preventing freezing, HEET® keeps your fuel injectors clean and ensures smooth engine performance.
The product is easy to use and comes in a 12-ounce bottle with a twist-off cap. Simply puncture the seal and pour the entire contents into your fuel tank. One bottle of HEET® treats up to 20 gallons of gasoline. It is recommended to use it with every fill-up during the winter and at least every 5,000 miles in the summer to maintain clean injectors.
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Premium Fuel-Line Antifreeze
The Gold Eagle ISO-HEET Premium Fuel-Line Antifreeze is a water remover and injector cleaner designed for use in all 2 and 4 cycle gas and diesel engines. It is a premium gas-line antifreeze that absorbs up to five times more water than regular gas dryers. This product is designed for year-round use and can be used with every fill-up in freezing temperatures or whenever you want to absorb water from gas or diesel fuel.
The ISO-HEET Premium Fuel-Line Antifreeze comes in an easy-to-pour 12-ounce bottle. To use, simply twist off the cap, puncture the seal, and pour the entire contents into the tank before or after filling with fuel. One bottle treats up to 20 gallons of fuel. It is recommended to use it with every fill-up in winter and at least every 5,000 miles in summer to clean injectors.
The ISO-HEET brand is added directly to the fuel tank, where it mixes with the gasoline and any water present. This prevents water from freezing in the fuel lines during winter and removes water and condensation in warm, wet weather. The mixture of gasoline, ISO-HEET, and water is then burned during combustion inside the engine. This process also helps to clean fuel injectors and carburetors, resulting in faster starts and smoother-running engines.
The ISO-HEET Premium Fuel-Line Antifreeze has received numerous positive reviews from customers who have noticed improved engine performance, smoother starts, and increased gas mileage. It is an excellent and inexpensive way to protect your vehicle's engine and improve its overall performance and longevity.
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Frequently asked questions
Iso-HEET is a premium water remover and injector cleaner that can be used all year round in all types of gasoline, 2-cycle mix, and diesel. It is designed to prevent and treat freezing gas lines and remove water from the fuel tank.
When Iso-HEET is added to the fuel tank, it mixes with the gasoline and absorbs water, preventing it from freezing in the gas line. The entire mixture of gasoline, Iso-HEET, and water is then burned during combustion inside the engine.
Iso-HEET helps improve engine performance, increase gas mileage, and extend the longevity of your vehicle. It also prevents rust and corrosion by removing water from the fuel system.
It is recommended to use Iso-HEET with every fill-up in winter and at least every 5,000 miles in summer to clean injectors and remove condensation.










































