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Frequently Asked Questions

HEET FAQ's ISO-HEET FAQ's

HEET GAS-LINE ANTIFREEZE

What is gas-line antifreeze?
Gas-line antifreeze removes any water from the vehicle’s fuel system. In cold weather moisture can freeze in the gas lines which prevents the vehicle from starting.

When should you use Heet Gas-line Antifreeze?
Whenever weather forecasts predict that the temperature will fall to 20ºF or less for an extended period of time. HEET can thaw frozen gas lines, however, it should be used as a preventative before moisture freezes the gas lines. Continue to add HEET during extended periods of frigid temperatures. You can obtain accurate updated weather forecasts for your area at the Gold Eagle Web site (click here).

How do you add Heet (treatment levels)?
Just pour a bottle into your gas tank. One bottle of HEET will treat up to 20 gallons of gasoline. HEET, which contains methanol, can be added to all motor vehicles without concern since the actual dilution of methanol in the fuel tank will be less than one percent.

Application & how HEET Gas-Line Antifreeze works:
HEET contains methanol and a corrosion inhibitor. When HEET is added to the gas tank, it sinks to the bottom and mixes with any water.Since both HEET and water are heavier than gasoline they go to the bottom of the gas tank. HEET keeps the water from freezing and blocking the flow of gasoline through the gas line and fuel pump. When the vehicle is started, methanol, water and gasoline are consumed during combustion inside the engine. HEET also serves as an excellent water remover in the spring and summer.

Why should I add gas-line antifreeze when gasoline I buy already contains additives like ethanol and methanol?
Heet and Iso-Heet provide the extra measure of protection to guard against gas-line freeze-ups. This protection pays off when you start your vehicle for the first time on an extremely cold day.

Could HEET harm my vehicle?
Absolutely not, HEET can be used with all types of gasoline and is safe for fuel injectors, catalytic converters, carburetors, and oxygen sensors. Additionally, HEET helps keep your fuel system clean and free of corrosion.

Storage/Shelf Life of HEET Gas Line Antifreeze:
Unopened HEET bottles have a shelf life of 2 years. During storage the bottle may swell and appear pressurized. This distortion is a result of vapor pressure formed by methanol when stored at higher temperatures (which can happen in your garage or in the trunk of your car). When this happens, the product is still OK to use.

The difference between HEET and ISO-HEET:
HEET Gas-Line Antifreeze, the original of the two HEET products, comes in the familiar yellow bottle and has been sold for more than 50 years. It contains methanol while ISO-HEET, which comes in the red bottle, contains isopropanol. Both products prevent gas line freeze-up hassles but remove water in different ways. ISO-HEET has five times the drying power of regular gas-line antifreeze and is usually priced slightly higher than HEET. Under extreme cold weather conditions, you might want to give ISO-HEET a try.

ISO-HEET FUEL SYSTEM DRYER

Treatment levels of ISO-HEET:
One bottle of ISO-HEET will treat up to 20 gallons of gasoline.

Storage/Shelf Life of ISO-HEET:
Unopened bottles of ISO-HEET have a shelf life of 2 years. During storage the bottle may swell and appear pressurized. This distortion is a result of vapor pressure formed by isopropanol stored at higher temperatures (which can happen in your garage or in the trunk of your car). The product is O.K. to use if the bottle appears in this condition.

Application of ISO HEET and how it works:
When ISO-HEET is added to the fuel tank, isopropanol remains in solution with the gasoline and absorbs five times its weight in water. Any water in the gas tank bonds with the isopropanol - which in turn, prevents the water from freezing. Gasoline, isopropanol and water are burned during combustion in the engine. ISO-HEET will also serve as a water remover in the spring and summer.

The difference between HEET and ISO-HEET:
ISO-HEET (which comes in a red bottle) contains isopropanol while HEET Gas-Line antifreeze (which comes in a yellow bottle) contains methanol Both products prevent gas line freeze-up hassles but remove water in different ways. Iso-HEET has five times the drying power of regular gas-line antifreeze - you might want to give it a try under extreme cold weather conditions.

When should I add ISO-HEET?
ISO-HEET should be added the gas tank before temperatures dip to 20ºF. Continue to add ISO-HEET during extended periods of frigid temperatures. You can obtain accurate updated weather forecasts for your area from the The Weather Channel.
 
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