2008 MITSUBISHI GRANDIS engine

Maintenance
8-3
8 Catalytic converter
E01000200752
For ordinary use, there are no particular precautions except that
of using unleaded petrol.
The exhaust gas scavenging devices used with the catalytic
converter are extremely efficient for the reduction of noxious
gases. The catalytic converter is installed in the exhaust sys-
tem.
It is important to keep the engine properly tuned to ensure
proper catalyst operation and prevent possible catalyst damage.The catalytic converter itself gets hot quickly, and may be dam-
aged if overheated. The following points should be noted in
order to prevent the ignition of unburned petrol within the cata-
lytic converter.
●Use UNLEADED PETROL ONLY of the type recom-
mended in “Fuel selection” on page 2.
●Do not drive with an extremely low fuel level; running out
of fuel could cause damage to the catalytic converter.
●Do not try to start the engine by pushing the vehicle. If the
battery is weak or discharged, use another battery to start
the engine.
●Do not idle the engine with any spark plug wires discon-
nected or removed such as performing diagnostic tests.
●Do not idle the engine for prolonged periods during very
rough idle or malfunctioning operating conditions.
●Do not race the engine when turning off the ignition
switch. This will cause the catalytic converter to be dam-
aged due to contact with unburnt fuel.
●Stop driving the vehicle if you think the performance is
noticeably low, or that there is unnecessary engine rota-
tion, or any other engine trouble, such as with the ignition,
etc.
If it is impractical to stop driving immediately, reduce the
speed and drive for only a short time. We recommend you
to have your vehicle inspected as soon as possible.
CAUTION
!●Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition. In
the event of an engine malfunction particularly
involving engine misfire or other apparent loss of
performance have your vehicle serviced promptly.
Continued operation of your vehicle with a severe
overheated condition may result in possible damage
to the converter and vehicle.
WARNING
!●As with any vehicle, do not park or operate this
vehicle in areas where combustible materials such as
dry grass or leaves can come in contact with the hot
exhaust since fire could occur.●Paint should not be applied to the catalytic con-
verter.
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8-4 Maintenance
8
●In unusual situations involving grossly malfunctioning
engine operation, a burnt smell may indicate severe and
abnormal catalyst overheating.
If this occurs, the vehicle should be stopped in a safe
place, the engine switched off and the vehicle allowed to
cool. Once the engine is cool, a service, including a tune-
up to manufacturer’s specifications, should be obtained
immediately.
Bonnet
E01000301095
To open Pull the release lever towards you to unlock the bonnet.
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Maintenance
8-7
8 Engine oil
E01000401139
To check and refill engine oilPetrol-powered vehicles
Diesel-powered vehicles
(except for diesel particulate
filter models)Diesel-powered vehicles (for
diesel particulate filter models)
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8-8 Maintenance
8
The engine oil used has a significant effect on the engine’s per-
formance, service life and startability. Be sure to use oil of the
recommended quality and appropriate viscosity.
All engines consume a certain amount of oil during normal
operation, and engine oil consumption is greatly influenced by
payload, engine speed, etc. Therefore, it is important to check
the oil level at regular intervals or before starting a long trip.
This check must be made with the engine warm but not run-
ning. Park the vehicle on a level surface, stop the engine, and
then wait a few moments to allow the engine oil in circulation
to return to the oil pan to ensure accurate measurement.
Remove the dipstick and wipe it with a clean cloth. Reinsert
the dipstick as far as it goes. Remove the dipstick and read the
oil level, which should always be within the range indicated.
If the oil level is below the specified limit, remove the cap
located on the cylinder head cover and add enough oil to raise
the level to within the specified range.
Be sure to use the specified engine oil and do not mix various
types of oil. Also, avoid mixing different makes of oil together
if possible.
After adding oil, close the cap securely.
Use only the recommended oils with an ACEA or API classifi-
cation as specified in this manual.NOTE●Engine oil consumption is greatly influenced by payload,
engine speed, etc. It may reach 1.0 lit./1,000 km depend-
ing on style of driving.●The engine oil will deteriorate rapidly if the vehicle is
subjected to severe conditions (for example, repeated
operation on rough roads, in mountainous regions, on
roads with many uphill and downhill gradients, or over
short distances). Consequently, the oil will require earlier
replacement.
●For handling of used engine oils, refer to page 7.
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Maintenance
8-9
8
Selection of engine oilPetrol-powered vehicles


1. Select engine oil of the proper SAE viscosity number
according to the atmospheric temperature.
SAE 0W-30, 5W-30, and 5W-40 engine oils can only be
used if they meet ACEA A3/B3, A3/B4 or A5/B5 and API
SG (or higher) specifications.
2. Use engine oil conforming to the following classification:
• API classification: “For service SG” or higher
• ILSAC certificated oil
• ACEA classification:
“For service A1/B1, A3/B3, A3/B4 or A5/B5”
NOTE●Use of additives is not recommended since they may
reduce the effectiveness of additives already included in
the engine oil. It may result in failure of the mechanical
assembly.
Diesel-powered vehicles
Use engine oil conforming to the following classification:
• Vehicles with DPF= “VW 50700”
• Vehicles without DPF= “VW 50501/50601/50700”NOTE●Use of additives is not recommended since they may
reduce the effectiveness of additives already included in
the engine oil. It may result in failure of the mechanical
assembly.
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8-10 Maintenance
8Engine coolant
E01000500960
To check the coolant levelA translucent coolant reserve tank is located in the engine com-
partment.Petrol-powered vehiclesCheck the coolant level in the reserve tank. The reserve tank lid
(B) is equipped with a dipstick.
Remove the dipstick and wipe it with a clean cloth. Reinsert
the dipstick as far as it goes. Remove the dipstick and read the
coolant level, which should always be within the range “F”
(FULL) or “L” (LOW) while the engine is cold.
To add coolantThe cooling system is a closed system and normally the loss of
coolant should be very slight. A noticeable drop in the coolant
level could indicate leakage. If this occurs, we recommend you
to have the system checked as soon as possible.
If the level should drop below the “L” (LOW) level on the dip-
stick, add coolant to the reserve tank.
Also, if the reserve tank is completely empty, remove the radia-
tor cap (A) and add coolant until the level reaches the filler
neck.Anti-freezeThe engine coolant contains an ethylene glycol anti-corrosion
agent. The cylinder head and water pump housing are cast alu-
minium alloy, and periodic changing of the engine coolant is
necessary to prevent corrosion of these parts.
Use “DIA QUEEN SUPER LONG LIFE COOLANT” or
equivalent.
MITSUBISHI Genuine Coolant has excellent protection
against corrosion and rust formation of all metals including
aluminium and can avoid blockages in the radiator, heater, cyl-
inder head, engine block, etc.
FULL
LOW
WARNING
!●Do not open the radiator cap while the engine is hot.
The coolant system is under pressure and any hot
coolant escaping could cause severe burns.
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Maintenance
8-11
8
Because of the necessity of this anti-corrosion agent, the cool-
ant must not be replaced with plain water even in summer. The
required concentration of anti-freeze differs depending on the
expected ambient temperature.
Diesel-powered vehiclesThe coolant level in this tank should be kept between the
“LOW” and “FULL” marks when measured while the engine is
cold.
Ambient temperature
(minimum) °C
–15
–20
–25
–30
–35
–50
Anti-freeze
concentration %30 35 40 45 50 60CAUTION
!●Do not use alcohol or methanol anti-freeze or any
engine coolants mixed with alcohol or methanol
anti-freeze. The use of an improper anti-freeze can
cause corrosion of the aluminium components.●For effective anti-corrosion and anti-freeze per-
formance, keep the anti-freeze concentration within
the range of 30 to 60 %.
Concentrations exceeding 60 % will result in a
reduction of both the anti-freeze and cooling per-
formance thus adversely affecting the engine.●Do not top up with water only.
Water by itself reduces the rust-protective and anti-
freeze qualities of the coolant and has a lower boil-
ing point. It can also cause damage to the cooling
system if it should freeze. Do not use tapwater, as it
can cause corrosion and rust formation.
FULL
LOW
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8-12 Maintenance
8
To add coolantThe cooling system is a closed system and normally the loss of
coolant should be very slight. A noticeable drop in the coolant
level could indicate leakage. If this occurs, we recommend you
to have the system checked as soon as possible.
If the level should drop below the “LOW” level on the reserve
tank, open the lid and add coolant.Anti-freezeThe engine coolant contains an ethylene glycol anti-corrosion
agent. The cylinder head and water pump housing are cast alu-
minium alloy, and periodic changing of the engine coolant is
necessary to prevent corrosion of these parts.
Use only “BASF Glysantin Alu Protect Premium/G30”.
It has excellent protection against corrosion and rust formation
of all metals including aluminium and can avoid clogs in the
radiator, heater, cylinder head, engine block, etc.
Because of the necessity of this anti-corrosion agent, the cool-
ant must not be replaced with plain water even in summer.
The anti-freeze must fill 50 % concentration coolant in all tem-
perature conditions.
During cold weatherIf the temperatures in your area drop below freezing, there is
the danger that the coolant in the engine or radiator could
freeze and cause severe damage to the engine and/or radiator.
Add a sufficient amount of anti-freeze to the coolant to prevent
it from freezing.
The engine coolant mixture used at the factory provides protec-
tion against freezing for temperatures as low as approximately–30 °C. The concentration should be checked before the start of
cold weather and anti-freeze added to the system if necessary.
WARNING
!●Do not open the reserve tank cap while the engine is
hot. The coolant system is under pressure and any
hot coolant escaping could cause severe burns.
CAUTION
!●Do not use alcohol or methanol anti-freeze or any
engine coolants mixed with alcohol or methanol
anti-freeze. The use of an improper anti-freeze can
cause corrosion of the aluminium components.●Do not top up with water only.
Water by itself reduces the rust-protective and anti-
freeze qualities of the coolant and has a lower boil-
ing point. It can also cause damage to the cooling
system if it should freeze. Do not use tapwater, as it
can cause corrosion and rust formation.
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