Lexus LS 500 2019 Owner's Manual page 378

378
6-3. Do-it-yourself maintenance
"F" line
B
"L" line
C
If the level is on or below the "L" line, add
coolant up to the "F" line. (P.440)
Intercooler coolant reservoir
■
The coolant level is satisfactory if it is
between the "F" and "L" lines on the
reservoir when the engine is cold.
Reservoir cap
A
"F" line
B
"L" line
C
If the level is on or below the "L" line, add
coolant up to the "F" line. (P.440)
Coolant selection
■
Only use "Toyota Super Long Life Coolant"
or a similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite,
and non-borate coolant with long-life
hybrid organic acid technology.
U.S.A.:
"Toyota Super Long Life Coolant" is a mix-
ture of 50% coolant and 50% deionized
water. (Minimum temperature: -31°F
[-35°C])
Canada:
"Toyota Super Long Life Coolant" is a mix-
ture of 55% coolant and 45% deionized
water. (Minimum temperature: -44°F
[-42°C])
For more details about coolant, contact
your Lexus dealer.
LS500_OM_(U)_1810
If the coolant level drops within a short
■
time of replenishing
Visually check the radiator, hoses, engine
coolant reservoir caps, drain cock and
water pump.
If you cannot find a leak, have your Lexus
dealer test the cap and check for leaks in
the cooling system.
WARNING
■ When the engine is hot
Do not remove the engine coolant reser-
voir cap, the intercooler coolant reser-
voir cap and the coolant inlet cap.
(P.442)
The cooling system may be under pres-
sure and may spray hot coolant if the cap
is removed, causing serious injuries, such
as burns.
NOTICE
When adding coolant
■
Coolant is neither plain water nor
straight antifreeze. The correct mixture
of water and antifreeze must be used to
provide proper lubrication, corrosion
protection and cooling. Be sure to read
the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to pre-
vent it from damaging parts or paint.
Checking the radiator, con-
denser, intercooler radiator (if
equipped) and intercooler sub
radiator (if equipped)
Check the radiator, condenser, inter-
cooler radiator and intercooler sub
radiator and clear away any foreign
objects. If either of the above parts is
extremely dirty or you are not sure of
their condition, have your vehicle
inspected by your Lexus dealer.