Acura 2000 TL Owner's Manual page 211

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Cooling System
4. The coolant level should be up to
the base of the filler neck. Add
coolant if it is low.
5. Put the radiator cap back on.
Tighten it fully.
Maintenance
RESERVE TANK
6. Pour coolant into the reserve tank.
Fill it to halfway between the MAX
and MIN marks. Put the cap back
on the reserve tank.
Do not add any rust inhibitors or
other additives to your car's cooling
system. They may not be compatible
with the coolant or engine compo-
nents.
Replacing Engine Coolant
The cooling system should be
completely drained and refilled with
new coolant according to the time
and distance recommendations in
the maintenance schedule. Only use
Genuine Honda Antifreeze/Coolant.
Draining the coolant requires access
to the underside of the car. Unless
you have the tools and knowledge,
you should have this maintenance
done by a skilled mechanic.