Checking And Changing The Engine Coolant - Hyundai Azera 2005 Owner's Manual

G350A01A-GAT
ENGINE OIL CONSUMPTION
Function of Engine Oil
Engine oil has the primary function of
lubricating and cooling the inside of
the engine.
Engine oil consumption
It is normal that an engine should
consume some engine oil while nor-
mal driving. The cause of oil con-
sumption in a normal engine are as
follows;
o Engine oil is used to lubricate pis-
tons, piston rings and cylinders.
A thin film of oil is left on the
cylinder wall when a piston moves
downwards in the cylinder. High
negative pressure generated dur-
ing engine operation sucks some
of the oil into the combustion cham-
ber.
This oil with some oil of the cylin-
der wall is burned by the high tem-
perature combustion gases during
the combustion process.
o The engine oil consumption is
strongly effected by the viscosity
and quality of oil, engine rpm and
driving condition etc. The engine
oil is more consumed under severe
driving conditions such as high
speeds and frequent acceleration
and deceleration than normal driv-
ing condition.
DO-IT-YOURSELF MAINTENANCE
CHECKING AND CHANGING
THE ENGINE COOLANT
G050A01TG-AAT
!
WARNING:
Do not remove the radiator cap
when the engine is hot. When the
engine is hot, the engine coolant
is under pressure and may erupt
through the opening if the cap is
removed. You could be seriously
burned if you do not observe this
precaution. Do not remove the
radiator cap until the radiator is
cool to the touch.
NOTE:
It is recommended that the engine
coolant should be changed by an
authorized Hyundai dealer.
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