2010 MITSUBISHI LANCER Owners Manual

7-10 Vehicle care and maintenance
7
Engine oil identification markMitsubishi Motors recommends using only engine oils with the
ILSAC certification symbol on the front of the container.If you cannot find oils with the ILSAC certification symbol,
use an API classification SM or higher oil with the following
label.
This mark appears on the top of the oil container and tells you
two important things about the oil.ILSAC certification symbol
1- The top portion shows the quality of the oil.
2- The center portion shows the SAE grade of the oil viscosity.API service symbol
BK0102103US.book 10 ページ ２００９年１０月２６日　月曜日　午後１時３８分

Vehicle care and maintenance
7-11
7
Recommended engine oil viscosity
N00955000041
Use engine oil with the proper thickness for the outdoor tem-
peratures where you will be driving.Except for vehicles with turbochargerSAE 5W-20 engine oil is strongly recommended for optimum
fuel economy and cold starting.
SAE 10W-30 may be used when the normal operating tempera-
ture is above 100 °F (38 °C).
Vehicles with turbochargerNOTE
Select engine oil of the proper SAE viscosity number
according to the atmospheric temperature. SAE 5W-30,
0W-30 and 0W-40 engine oil can only be used if it meets
API SM (or higher) specifications.

SAE 0W-30 and 0W-40 engine oil are recommended to
use to improve engine startability on a very cold weather
condition.

SAE 10W-30 may be used when the normal operating
temperature is above 100 °F (38 °C).

Use engine oil conforming to the following classification:
• API classification: “For service SM” or higher
• ILSAC certificated oil
BK0102103US.book 11 ページ ２００９年１０月２６日　月曜日　午後１時３８分

7-12 Vehicle care and maintenance
7
To replace the oil filter
N00955100013
The oil filter should be replaced at the time or mileage speci-
fied in the “WARRANTY AND MAINTENANCE MAN-
UAL”.
Only use high quality replacement filters on this vehicle. The
manufacturer’s specifications for Genuine Mitsubishi oil filters
require that the filter can withstand a pressure of 256 psi
(1.8 MPa). A Genuine Mitsubishi oil filter is the best replace-
ment filter.
Follow the installation instructions printed on the filter.
Engine coolant
N00937800467
To check the coolant level The coolant reserve tank (A) lets you quickly see when you
need to add coolant. When the engine is cold, the level in the
reserve tank should be between the “FULL” and “LOW”
marks. The radiator usually stays full so there is no reason to
remove the radiator cap (B) except when you check the coolant
freeze point or replace the antifreeze coolant.
BK0102103US.book 12 ページ ２００９年１０月２６日　月曜日　午後１時３８分

Vehicle care and maintenance
7-13
7
To add coolant Use Mitsubishi Genuine Coolant or an equivalent.
Mitsubishi Genuine Coolant provides excellent protection
against corrosion and rust formation on all metals, including
aluminum, and prevents blockages in the radiator, heater, cyl-
inder head, engine block, etc.
If you need to add coolant often, or if the level in the reserve
tank does not drop when the engine cools, the cooling system
should be pressure-tested for leaks. Take your vehicle to an
authorized Mitsubishi Motors dealer or a repair facility of your
choice for testing.
*- Front of the vehicleExcept for vehicles with turbocharger
FULL
LOWVehicles with turbocharger
FULL
LOW
CAUTION
!
Do not use alcohol or methanol antifreeze or any
engine coolants that contain them. Using the wrong
antifreeze can corrode aluminum parts.
When you need to add coolant to the reserve tank,
use at least a 50 % concentration of ethylene-glycol
antifreeze in water. Do not overfill. Use a higher con-
centration (not over 60 %) when the outside temper-
ature is -31 °F (-35 °C) or lower. When the engine is
working very hard (for example, during mountain
driving and/or when the outside temperature is
high), use a 50 % concentration. You can check the
concentration level with a gauge from an automotive
supply store, or your authorized Mitsubishi Motors
dealer or service station can check it for you. Use
only high quality ethylene-glycol antifreeze coolant
that is made to prevent corrosion of all cooling sys-
tem metals.
BK0102103US.book 13 ページ ２００９年１０月２６日　月曜日　午後１時３８分

7-14 Vehicle care and maintenance
7
Radiator capThe radiator cap must be tight sealed to prevent losing coolant
which may result in engine damage. Only use a Genuine
Mitsubishi Parts radiator cap, or an approved equivalent.
Points to remember
Do not overfill the reserve tank.

Your vehicle uses a special radiator cap that stays sealed
and lets the coolant flow from the reserve tank back to the
radiator when the engine cools down. If you need to
change the cap, use the exact same kind.

Check the coolant freeze point in the radiator with the
proper gauge, and only when it is safe. If you add anti-
freeze, the contents of the reserve tank must be protected
against freezing.

Keep the front of the radiator and condenser clean.

If the temperature of the engine coolant does not rise after
the engine is warmed-up, take your vehicle to an autho-
rized Mitsubishi Motors dealer or a repair facility of your
choice to have the thermostat checked, and replaced if
necessary.

Do not top off the tank with plain water only. Water
by itself boils at a lower temperature and does not
stop rust or freezing. If the water freezes, it will
damage your cooling system. Do not use tapwater. It
can cause corrosion and rust.
WARNING
!
Wait for the engine to cool down before opening the
radiator cap. Otherwise hot steam or boiling coolant
could spray up from the radiator and scald you.
CAUTION
!
BK0102103US.book 14 ページ ２００９年１０月２６日　月曜日　午後１時３８分

Vehicle care and maintenance
7-15
7 Air cleaner filter
N00937900338
The air cleaner filter will get dirty and dusty from use and not
filter properly. Replace it with a new filter using the schedule
in the “WARRANTY AND MAINTENANCE MANUAL”. 1. Remove the clips (A), then remove the duct (B).
Except for vehicles with turbochargerVehicles with turbocharger
BK0102103US.book 15 ページ ２００９年１０月２６日　月曜日　午後１時３８分

7-16 Vehicle care and maintenance
7
2. Except for vehicles with turbocharger, while holding
down the tab (C), pull out the connector (D).3. Unclamp and take out the air cleaner filter.Except for vehicles with turbocharger
Except for vehicles with turbochargerVehicles with turbocharger
BK0102103US.book 16 ページ ２００９年１０月２６日　月曜日　午後１時３８分

Vehicle care and maintenance
7-17
7
4. Install the air cleaner filter and put the cover back on in its
original position. NOTE
Genuine Mitsubishi Motors Parts are recommended when
replacing the air cleaner filter.

After replacing the air cleaner filter, make sure that the
hinges at the bottom of cover are firmly set. NOTE
Except for vehicles with turbocharger, make sure that the
connector is properly reconnected.5. Put the duct back on in its original position.Except for vehicles with turbocharger
Vehicles with turbocharger
BK0102103US.book 17 ページ ２００９年１０月２６日　月曜日　午後１時３８分