AMSOIL Gasoline Fuel Additives
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Package sizes include:
16-oz. Bottles (case of 6)
Gasoline is not formulated for long-term storage and can start to de-grade in as little as 60 days, leading to
varnish and sludge deposits that clog injectors, fuel lines and carburetors, stick floats and cause poor en-gine
performance, starting problems, increased maintenance expenses and decreased equipment life.
It is difficult to drain all of the fuel from equipment before storage, and doing so would expose
the system to other problems, including the formation of rust and corrosion on the bare metal in the tank and fuel
system and the drying and cracking of gaskets and seals. Some fuels are pre-treated with oxidation inhibitors that
allow them to be stored for short periods without forming excessive deposits, while other fuels have no inhibitors
AMSOIL Gasoline Stabilizer (AST) reduces the oxidation process that occurs when fuel is stored
for extended periods, improving performance, extending equipment life and decreasing maintenance expenses.
AMSOIL Gasoline Stabilizer applications include, but are not limited to, motorcycles, snowmobiles, ATVs, outboard
motors, stern drive and inboard marine engines, personal watercraft, lawn equipment, chainsaws, snowblowers,
portable generators, hand-held power equipment, motor scooters, powered farm equipment, powered construction
equipment, cars and trucks.
One ounce of AMSOIL Gasoline Stabilizer treats 2.5 gallons of fuel,
including fuel that contains up to 10% ethanol.
Dominator Octane Boost
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Package sizes include:
12-oz. Bottles (case of 6)
AMSOIL DOMINATOR® Octane Boost (AOB) significantly increases engine response and power in all
two- and four-cycle gasoline-fueled engines. Just one treatment reduces engine knock, improves ignition and
helps fuel burn cleaner. DOMINATOR Octane Boost is the recommended octane boost for all high-performance
off-road and racing applications. Most users find one 12-ounce bottle of DOMINATOR Octane Boost for 15
gallons of gasoline provides the ideal performance increase. DOMINATOR Octane Boost is also excellent as a
lead substitute at the same treat rates in collector automobiles, older off-road equipment and pleasure
- Improves performance
- Removes carbon deposits
- Maximizes power
- Reduces engine knock
- Improves ignition
- Improves responsiveness
- Helps fuel burn cleaner
What does "octane number" mean and why does it matter?
The tendency of a hydrocarbon fuel,
such as gasoline, to knock is measured by its octane number. Lower numbers denote a greater knock tendency; higher
numbers denote greater knock control. "Knock" is an uncontrolled and explosive ignition of fuel in the combustion
chamber. It causes a knocking or pinging sound, robs the engine of power and, left unchecked, causes serious engine
damage. Knock may be eliminated with the appropriate octane number.