Toyota 2004 HIGHLANDER, Owner'S Manual

Page: 375 / 420

’04 HIGHLANDER_U (L/O 0308)
375
2004 HIGHLANDER from Aug. ’03 Prod. (OM48478U)
Look at the see − through coolant reser-
voir when the engine is cold. The cool-
ant level is satisfactory if it is between
the “F” and “L” lines on the reservoir.
If the level is low, add the coolant. (For
the coolant type, see “Coolant type
selection” described below.)
The coolant level in the reservoir will vary
with engine temperature. However, if the
level is on or below the “L” line, add
coolant. Bring the level up to the “F” line.
If the coolant level drops within a short
time after replenishing, there may be a
leak in the system. Visually check the
radiator, hoses, radiator cap and drain
cock and water pump.
If you can find no leak, have your Toyota
dealer test the cap pressure and check
for leaks in the cooling system.
CAUTION
To prevent burning yourself, do not
remove the radiator cap when the en-
gine is hot.
Coolant type selection
Use of improper coolants may damage
your engine cooling system.
Only use “Toyota Super Long Life Coolant”
or similar high quality ethylene glycol
based non
− silicate, non − amine, non − nitrite,
and non − borate coolant with long − life
hybrid organic acid technology. (Coolant
with long
− life hybrid organic acid
technology consists of the combination of
low phosphates and organic acids.)
“Toyota Super Long Life Coolant” is pre
−
mixed with 50% coolant and 50% deion-
ized water. This coolant provides protec-
tion down to about
− 35 _ C ( − 31 _ F).
NOTICE
Do not use plain water alone.
Toyota recommends “Toyota Super Long
Life Coolant” which has been tested to
ensure that it will not cause corrosion nor
result in malfunction of your engine
coolant system with proper usage. “Toyota
Super Long Life Coolant” is formulated
with long − life hybrid organic acid
technology and has been specifically
designed to avoid engine cooling system
malfunction on Toyota vehicles.
Please contact your Toyota dealer for
further details.
Checking the engine coolant
level