Honda 2003 ST1300lA, Owner'S Manual

Page: 106 / 209

Coolant
Your motorcycle's liquid cooling system dissipates engine heat through the
coolant jacket that surrounds the cylinder and cylinder head.
Maintaining the coolant will allow the cooling system to work properly and
prevent freezing, overheating, and corrosion.
Use Pro Honda HP coolant or an equivalent high quality ethylene glycol
antifreeze containing corrosion protection inhibitors specifically recommended
for use in aluminum engines. Check the antifreeze container label.
Use only distilled water as a part of the coolant solution. Water that is high in
mineral content or salt may be harmful to the aluminum engine.
Using coolant with silicate inhibitors may cause premature wear
of
water pump
seals or blockage
of'
radiator passages. Using tap water may cause engine
damage.
The factory provides a 50/50 solution of antifreeze and water in this motorcycle.
This coolant solution is recommended for most operating temperatures and
provides good corrosion protection.
Decreasing the concentration of antifreeze to less than
40% will not provide
proper corrosion protection.
Increasing the concentration of antifreeze is not recommended because it
decreases cooling system performance. Higher concentrations of antifreeze (up
to
60%) should only be used to provide additional protection against freezing.
Check the cooling system frequently during freezing weather.
104
Servicing Your Honda