Engine Coolant; Exhaust Pipes And Mountings - Lexus GX Service Manual

EXPLANATION OF MAINTENANCE ITEMS

Engine Coolant

When inspecting, visually check
the engine coolant level on the see-
through reservoir. Add coolant as
necessary. When replacing, drain
and flush the cooling system and refill
with coolant. Always use Genuine
Toyota Super Long-Life Coolant or
similar high-quality non-silicate, non-
amine, non-borate ethylene-glycol
coolant with long-life hybrid organic
acid technology (i.e., a combination
of low phosphates and organic acids).
A qualified technician should per-
form these operations.
Note: Initial replacement is at 120
months/100,000 miles. Replace
every 60 months/50,000 miles
thereafter.
Engine Oil and Oil Filter
Replace the oil filter and drain and
refill the engine oil at specified inter-
vals. For recommended oil grade
and viscosity, refer to your Owner's
Manual. Some models are equipped
with a replaceable oil-filter element
and oil-filter cap O-ring; replace both
at each oil change. For instructions on
how to reset the reminder light, refer
to your Owner's Manual.
68 Scheduled Maintenance Log
Engine Valve Clearance (GX)
Inspect for excessive lifter noise and
engine vibration and adjust if neces-
sary. A qualified technician should
perform this operation. (The LX 570
and RX 350 are equipped with
hydraulic valve lash adjusters that
require no periodic clearance inspec-
tion or adjustment.)

Exhaust Pipes and Mountings

Visually inspect the exhaust pipes,
muffler and hangers for cracks,
deterioration and damage. Start
the engine and listen carefully for
any exhaust leakage. Tighten connec-
tions and replace parts as necessary.
Fuel Lines and Connections, Fuel
Tank Band and Fuel Tank Vapor
Vent System Hoses
Visually inspect for corrosion, dam-
age, cracks, and loose or leaking
connections. Tighten connections
and replace parts as necessary.
Fuel Tank Cap Gasket
Visually inspect for cracks, deterio-
ration and damage and replace if
necessary.