Jaguar XK. Manual — part 51

207

Maintenance

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1. Engine oil filler cap (Black)

2. Engine oil dipstick (Yellow)

3. Brake fluid reservoir cap
(Yellow)

4. Power steering fluid reservoir
cap (Black)

5. Coolant reservoir cap (Yellow)

6. Washer fluid reservoir cap (Blue)

5

6

1

2

4

3

3

E91597

E91600

E91602

E91601

E91603

E91598

E91599

Maintenance

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ENGINE OIL CHECK

Engine oil consumption

A certain amount of oil consumption is
normal. The rate of consumption will
depend on the following:
• the quality and viscosity of the oil
• climatic conditions
• the speed at which the engine is

being operated

• road conditions.

Drivers should expect above normal
consumption when the engine is new.

Check the oil level regularly with the
vehicle on flat, level ground.

Check the oil level with the engine
completely cold.

Checking the oil level

Note: If it is necessary to check the oil
level when the engine is hot, switch off
the engine and let the vehicle stand for
five minutes to allow the oil to drain back
into the sump. Do not start the engine.

Remove the dipstick 1 and wipe clean
with a non-fluffy cloth. Replace fully, then
withdraw the dipstick. If the oil level is
above the lower of the two dots on the
dipstick then no additional oil is required.

If the oil level is at or below the lower of
the two dots, remove the oil filler cap 2
and add 1.0 litre (1.1 US quart) of oil.

Refit the filler cap and hand tighten
securely until one click is heard.

CAUTIONS

If the message ENGINE OIL
PRESSURE LOW is displayed,
stop the engine as soon as it is safe

to do so and seek qualified assistance.
Do not start the engine until the cause
has been identified and rectified.

Your vehicle's warranty may be
invalidated if damage is caused by
the use of improper engine oil. Low

quality or obsolete oils do not provide the
protection required by modern, high
performance engines. Failure to use an
oil that meets the required specification
could cause excessive engine wear, a
build up of sludge and deposits and
increased pollution. It could also lead to
engine failure.

Do not use oil additives of any type
as engine damage could occur.
Use only specified lubricants.

2

1

E91657

209

Maintenance

R

Recommended engine oil

Jaguar recommends

Engine oil specification

API SM and ILSAC GF-4.
When topping up between
oil changes, make sure that
you use oil that has the
correct quality level (API

service) and viscosity grade.

Note: For maximum fuel economy,
5W-30 oil is recommended.

Engine oil temperature ranges

For climates ranging from - 35°C (- 31°F)
to + 50°C (+ 122°F), the following oil
viscosities may be used:

0W-30 will protect from - 35°C (- 31°F) to
+ 35°C (+ 95°F).

5W-30 (preferred) will protect from -30°C
(-22°F) to +35°C (+95°F).

0W-40 will protect from - 35°C (- 31°F) to
+ 50°C (+ 122°F).

5W-40 will protect from -30°C (-22°F) to
+50°C (+122°F).

ENGINE COOLANT CHECK

Check the level only when the engine is
cold. The coolant level should be
between the MAX and MIN indicators.

WARNINGS

It is unsafe to run the engine in an
overheated condition.

The radiator cooling fans may
continue to run after the ignition
has been switched off but will

automatically switch off when the engine
has cooled sufficiently.

Do not remove the coolant
reservoir filler cap while the
engine is hot. If it is essential, then

protect your hands against escaping
steam. Slowly turn the cap
counterclockwise to allow the steam
pressure to escape completely before
removing the cap.

CAUTION

If persistent coolant loss is noticed,
seek qualified assistance
immediately.

WARNINGS

E91658

Maintenance

210

L

If the message centre displays the
message ENGINE OVERHEATING, pull
over and allow the engine to idle for five
minutes and then switch off for ten
minutes. Switch on, and provided that the
warning does not re-occur, continue your
journey avoiding harsh acceleration.
Seek qualified assistance as soon as
possible.

Topping up the coolant

Top up with a mixture of 50% water and
50% antifreeze until the coolant is
between the MAX and MIN.

Refit the filler cap and hand-tighten
securely until one click is heard.

Antifreeze

Antifreeze contains important corrosion
inhibitors. The antifreeze content of the
coolant must be maintained at 50% ± 5%
all year round (not just in cold conditions).
To ensure that the anti-corrosion
properties of the coolant are retained, the
antifreeze content should be checked
once a year and completely renewed
every ten years, regardless of distance
travelled. Failure to do so may cause
corrosion of the radiator and engine
components.

The specific gravity of a 50% antifreeze
solution at 20°C (68°F) is 1.068 and
protects against frost down to -40°C
(-40°F).

Use antifreeze to specification WSS
M97B44, coloured orange, Extended Life
Coolant.

WARNINGS

Never remove the filler cap when
the engine is hot - escaping steam
or scalding water could cause

serious personal injury.

Avoid spilling antifreeze onto a hot
engine - a fire may result.

Unscrew the filler cap slowly,
allowing the pressure to escape
before removing completely.

WARNINGS

Antifreeze is poisonous and can
be fatal if swallowed - keep
containers sealed and out of the

reach of children. If accidental
consumption is suspected, seek medical
attention immediately.

If the fluid comes into contact with
the skin or eyes, rinse immediately
with plenty of water.

CAUTIONS

The use of non-approved
antifreeze will have an adverse
effect on the engine cooling system

and therefore engine durability.

Antifreeze will damage painted
surfaces; soak up any spillage with
an absorbent cloth immediately

and wash the area with a mixture of car
shampoo and water.