Checking Coolant - Chevrolet 2015 Corvette Owner's Manual

10-22 Vehicle Care
Will not damage aluminium
parts.
Helps keep the proper engine
temperature.
Caution
If improper coolant mixture,
inhibitors, or additives are used in
the vehicle cooling system, the
engine could overheat and be
damaged. Too much water in the
mixture can freeze and crack
engine cooling parts. The repairs
would not be covered by the
vehicle warranty. Use only the
proper mixture of engine coolant
for the cooling system. See
Recommended Fluids and
Lubricants on page 11-4.
Never dispose of engine coolant
by putting it in the refuse, pouring it
on the ground, or into sewers,
streams, or bodies of water. Have
the coolant changed by an
authorised service centre, familiar
with legal requirements regarding
used coolant disposal. This will help
protect the environment and your
health.
If ambient temperatures below
28°C ( 18°F) are anticipated,
make sure a proper mixture ratio of
50% DEXCOOL coolant and 50%
clean, drinkable water is used.

Checking Coolant

The vehicle must be on a level
surface when checking the coolant
level.
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, do not do anything else until
it cools down. If coolant is visible
but the coolant level is not at or
above the cold fill line, add a
mixture of 40% DEX-COOL coolant
and 60% clean, drinkable water at
the coolant recovery tank, but be
sure the cooling system is cool
before this is done. See Engine
Overheating on page 10-24.
The engine coolant surge tank is
toward the rear of the engine
compartment on the passenger side
of the vehicle. See Engine
Compartment Overview on
page 10-7.
When the engine is cold, the coolant
level should be at the cold fill line on
the coolant surge tank.
When the engine is hot, the level
could be higher than the cold fill
line. If the coolant is below the cold
fill line when the engine is hot, there
could be a leak in the cooling
system.
If the coolant is low, add the coolant
or take the vehicle to a dealer for
service.