Engine Oil And Oil Filter; Engine And Inverter Coolants; Engine Valve Clearance - Lexus 2014 GS 450h Warranty And Services Manual

exPLAnAtion oF MAintenAnCe iteMS

engine and inverter Coolants

When inspecting, visually check
the levels of the engine and inverter
coolants on the see­through reser­
voirs. Add coolant as necessary.
When replacing, drain the cooling
system and refill with coolant. Always
use Genuine Toyota Super Long­Life
Coolant or similar high­quality
non­silicate, non­amine, non­nitrate,
non­borate ethylene­glycol coolant
with long­life hybrid organic acid
technology (i.e., a combination of low
phosphates and organic acids). A
qualified technician should perform
these operations. Please refer to the
important safety precautions on the
inside front cover of this booklet.
Check the radiator and condenser
for blockage by leaves, dirt or insects
and clean if necessary. Also check
the hose connections for corrosion
and condition of installation.
note: Initial replacement of engine
coolant is at 120 months/100,000
miles. Replace every 60 months/
50,000 miles thereafter. Initial
replacement of inverter coolant is
at 180 months/150,000 miles.
Replace every 60 months/50,000
miles thereafter.
70
Scheduled Maintenance Log

engine Oil and Oil filter

Replace the oil filter and drain and
refill the engine oil at specified intervals.
SAE 0W­20 oil is the best choice
for good fuel economy and good
starting in cold weather. If SAE 0W­20
is not available, SAE 5W­20 may be
used; however, it must be replaced
with SAE 0W­20 at the next oil
change. See your Lexus dealer for
oil specifically formulated for your
vehicle's engine.
Your vehicle is equipped with a
replaceable oil­filter element and
oil­filter cap O­ring; replace both
at each oil change. For instructions
on how to reset the reminder light,
refer to your Owner's Manual.
note: If you do the majority of your
driving under any of the special
operating conditions indicated on
page 45, you should replace the
engine oil and oil filter every six
months or 5,000 miles, regardless
of the oil used or the certification
of the vehicle.

engine Valve Clearance

The GS 450h is equipped with
hydraulic valve lash adjusters that
require no periodic clearance
inspection or adjustment.