Suzuki DF70A Owner's Manual page 6

NOTE:
If you are not satisfied with the operation or fuel
economy of your outboard motor when you are
using gasoline/alcohol blends, you should
switch back to unleaded gasoline containing no
alcohol.
Be sure that any gasoline/alcohol blend you use
has octane ratings of at least 91 octane
(Research method).
If engine pinging is experienced, substitute
another brand as there are differences between
brands.
Unleaded gasoline will extend spark plug life.
 WARNING
Gasoline is extremely flammable and toxic. It
can cause a fire and can be hazardous to peo-
ple and pets.
Always take the following precautions when
refueling:
• Never permit anyone other than an adult to
refill the fuel tank.
• If you use a portable fuel tank, always stop
the motor and remove the fuel tank from the
boat to refill it.
• Do not fill the fuel tank all the way to the top
or fuel may overflow when it expands due to
heating by the sun.
• Be careful not to spill fuel. If you do, wipe it
up immediately.
• Do not smoke, and keep away from open
flames and sparks.
6
NOTICE
Gasoline kept in the fuel tank for long periods
of time will produce varnish and gum, which
can damage the engine.
Always use fresh gasoline.
NOTICE
Fuels containing alcohol can cause paint
damage, which is not covered under the New
Outboard Motor Limited Warranty.
Be careful not to spill fuel containing alcohol
while refueling. If fuel is spilled, wipe it up
immediately.