Engine Coolant - Chevrolet 2008 Corvette Owner's Manual

When to Check and What to Use
Refer to the Maintenance Schedule for the proper fluid
to use. See Recommended Fluids and Lubricants
on page 6-12. The fluid requires changing every
two years. See Additional Required Services on
page 6-6.
How to Check and Add Fluid
Visually check the clutch fluid reservoir to make sure
the fluid level is at the MIN (Minimum) line on the side of
the reservoir. The hydraulic clutch fluid system should
be kept closed and sealed. Do not remove the cap
to check the fluid level or to top-off the fluid level.
Remove the cap only when necessary to add the
proper fluid until the level reaches the MIN line.
5-28
The hydraulic clutch fluid
reservoir cap has this
symbol on it. See Engine
Compartment Overview
on page 5-14 for reservoir
location.

Engine Coolant

The cooling system in your vehicle is filled with
®
DEX-COOL engine coolant. This coolant is designed
to remain in your vehicle for five years or 150,000 miles
(240 000 km), whichever occurs first, if you add only
®
DEX-COOL extended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem
with engine overheating, see Engine Overheating on
page 5-31.
A 50/50 mixture of clean, drinkable water and
®
DEX-COOL coolant will:
Give freezing protection down to −34°F (−37°C).
•
•
Give boiling protection up to 265°F (129°C).
•
Protect against rust and corrosion.
•
Help keep the proper engine temperature.
•
Let the warning lights and gages work as they
should.
Notice: Using coolant other than DEX-COOL
cause premature engine, heater core, or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at the first maintenance
service after each 30,000 miles (50 000 km) or
24 months, whichever occurs first. Any repairs would
not be covered by the vehicle warranty. Always use
®
DEX-COOL (silicate-free) coolant in the vehicle.
®
can