name. SIENNA (45403U)
241
Be sure that the ignition is off if
you work near the electric cooling
fans or radiator grille. With the
ignition on, the electric cooling fans
will automatically start to run if the
engine coolant temperature is high
and/or the air conditioning is on.
Use eye protection whenever you
work on or under your vehicle
where you may be exposed to flying
or falling material, fluid spray, etc.
Used engine oil contains potentially
harmful contaminants which may
cause skin disorders such as in-
flammation or skin cancer, so care
should be taken to avoid prolonged
and repeated contact with it. To re-
move used engine oil from your
skin, wash thoroughly with soap
and water.
Do not leave used oil within the
reach of children.
Dispose of used oil and filter only
in a safe and acceptable manner.
Do not dispose of used oil and fil-
ter in household trash, in sewers or
onto the ground. Call your dealer or
a service station for information
concerning recycling or disposal.
NOTICE
Remember that battery and ignition
cables carry high currents or volt-
ages. Be careful of accidentally
causing a short circuit.
Add only demineralized or distilled
water to fill the radiator. And if you
spill some of the coolant, be sure
to wash off with water to prevent it
from damaging the parts or paint.
Do not allow dirt or anything else
to fall through the spark plug holes.
Do not pry the outer electrode of a
spark plug against the center elec-
trode.
Use only spark plugs of the speci-
fied type. Using other types will
cause engine damage, loss of per-
formance or radio noise.
Do not reuse platinum−tipped spark
plugs by cleaning or regapping.
Do not overfill automatic transmis-
sion fluid, or the transmission
could be damaged.
Do not drive with the air cleaner
filter removed, or excessive engine
wear could result. Also backfiring
could cause a fire in the engine
compartment.
Be careful not to scratch the glass
surface with the wiper frame.
When closing the engine hood,
check to see that you have not for-
gotten any tools, rags, etc.
ProCarManuals.com
name. SIENNA (45403U)
264
Engine
Model:
1MZ−FE
Type:
6 cylinder V type 4 cycle, gasoline
Bore and stroke, mm (in.):
87.5 83.0 (3.44 3.27)
Displacement, cm
3 (cu. in.):
2995 (182.8)
Fuel
Fuel type:
Unleaded gasoline, Octane Rating 87
(Research Octane Number 91) or higher.
For improved vehicle performance, the
use of premium unleaded gasoline with
an Octane Rating of 91 (Research Oc-
tane Number 96) or higher is recom-
mended.
Fuel tank capacity, L (gal., Imp. gal.):
79 (21, 17.5)
Service specifications
ENGINE
Valve clearance (engine cold), mm (in.):
Intake 0.15—0.25 (0.006—0.010)
Exhaust 0.25—0.35 (0.010—0.014)
Spark plug type:
DENSO PK20TR11
NGK BKR6EKPB11
Spark plug gap, mm(in.):
1.1 (0.043)
Drive belt tension measured with Borroughs
drive belt tension gauge No. BT−33−73F
(used belt), Ibf:
Generator belt 12510
Power steering pump belt 11520
ENGINE LUBRICATION
Oil capacity (drain and refill), L (qt., Imp.
qt.):
With filter 4.7 (5.0, 4.1)
Without filter 4.5 (4.8, 4.0)
Oil grade:
API grade SJ, ”Energy−Conserving” or
ILSAC multigrade engine oil is
recommended.
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