Link to why add stabilizer:
AMSOIL Gasoline Stabilizer
Gasoline Stabilizer
Formulated to Resist Gasoline Breakdown
For maximum convenience and cost-effectiveness, equipment and
vehicles used seasonally, such as motorcycles, snowmobiles, personal
watercraft, snowblowers, outboard motors and classic cars, need to start
easily and run properly when removed from storage. Gasoline, however,
is not formulated for long-term storage and can start to degrade in as
little as 30 days. Degraded fuel leads to varnish and sludge that clog
injectors, fuel lines and carburetors; stick floats; and cause poor engine
performance, starting problems, increased maintenance expenses and
decreased equipment life.
AMSOIL Gasoline Stabilizer (AST) inhibits the oxidation process that
occurs when fuel is stored for extended periods, improving performance,
extending equipment life and decreasing maintenance expenses.
Delivers Confidence
Treating fuel with AMSOIL Gasoline Stabilizer prior to storing equipment provides confidence. It offers peace of mind that equipment will not only start when it is needed, but will also perform properly.
Eliminates Need to Drain Fuel
Draining fuel from equipment can not only be difficult, it invites corrosion on the bare metal in the tank and 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 at all.
AMSOIL Gasoline Stabilizer eliminates the need to drain fuel from equipment before long-term storage. It fights fuel deterioration, severely limiting the formation of damaging varnish and deposits to help extend equipment life.
Decreases Maintenance
Deposits, varnish and sludge that form from degraded fuel can cause important
components in the fuel system to become clogged or stuck and require thorough cleaning or replacement. AMSOIL Gasoline Stabilizer helps reduce maintenance time and costs by preventing harmful deposits from forming in the tank and fuel system, eliminating the need to clean or replace carburetors after long-term storage.