2006 Lexus GS300 engine

Scheduled Maintenance Log
59
S
CHEDULED
M
AINTENANCE
L
OG
❏Replace engine oil and oil filter
1
❏Measure brake pad thickness and rotor runout
❏Measure thickness of brake rotors (GS 430, IS)
❏Replace brake fluid
❏Replace engine air filter
❏Replace spark plugs
6
❏Replace transmission fluid (ES 330, LS 430)
4
❏Re-torque axle shaft flange bolts (all models except ES)
❏Rotate tires (all models except IS with different size front and rear tires)
❏Road-test vehicle
❏Inspect the following:____Axle shaft boots
____Ball joints and dust covers
____Body____
____Brake lines and hoses____
____Drive belts
____Engine valve clearance (ES, GS 430, LS, SC)
____Exhaust pipes and mountings
____Front differential oil (AWD GS 300,
AWD IS 250)
144 Months or 120,000 Miles
1Reset the oil replacement reminder (“MAINT REQD”)
light after replacing engine oil, if vehicle is equipped
with this light.2Required only if vehicle is operated primarily in desert,
on dirt roads or while towing.3Replace only with 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).4Required only if vehicle is operated primarily while towing.5If equipped with limited-slip differential.6Required under the terms of the Emission Control
Warranty. ❏Inspect nuts and bolts on chassis
2
❏Replace air conditioner filter
❏Replace differential oil (ES 330
4,
IS
5)
____Fuel lines and connections, fuel
tank band and fuel tank vapor
vent system hoses
____Fuel tank cap gasket
____Manual transmission oil (IS 250)
____Rack and pinion assembly
____Rear differential oil (IS, GS, LS, SC)
____Steering linkage and boots
____Transmission fluid (ES 330, SC)
Date: _____________________ Mileage: _______________________
Notes: MAINTENANCE

Scheduled Maintenance Log
60
S
CHEDULED
M
AINTENANCE
L
OG
150 Months or 125,000 Miles
❏Replace engine oil and oil filter
1
❏Re-torque axle shaft flange bolts (all models except ES)
2
❏Rotate tires (all models except IS with different size front and rear tires)
❏Visually inspect brake pads and rotors
❏Road-test vehicle
❏Inspect the following:
2
____Axle shaft boots ____Nuts and bolts on chassis
____Ball joints and dust covers ____Steering linkage and boots
____Engine air filter
156 Months or 130,000 Miles
❏Replace engine oil and oil filter
1
❏Inspect engine coolant
3
❏Measure thickness of front brake pads and rotors (GS 430, IS)
❏Replace air conditioner filter (GS 300, GS 430, IS 350, LS 430, SC)
❏Re-torque axle shaft flange bolts (all models except ES)
2
❏Rotate tires (all models except IS with different size front and rear tires)
❏Visually inspect brake pads and rotors
❏Road-test vehicle
❏Inspect the following:
2
____Axle shaft boots ____Nuts and bolts on chassis
____Ball joints and dust covers ____Steering linkage and boots
____Engine air filter
Date: _____________________ Mileage: _______________________
Notes:
Date: _____________________ Mileage: _______________________
Notes: MAINTENANCE

Scheduled Maintenance Log
61
S
CHEDULED
M
AINTENANCE
L
OG
❏Replace engine oil and oil filter
1
❏Clean air conditioner filter (IS 250)
❏Inspect engine air filter
2
❏Inspect nuts and bolts on chassis
2
❏Re-torque axle shaft flange bolts (all models except ES)
❏Rotate tires (all models except IS with different size front and rear tires)
❏Visually inspect brake pads and rotors
❏Road-test vehicle
❏Inspect the following:____Axle shaft boots
____Ball joints and dust covers
____Body
____Brake lines and hoses
____Drive belts
____Exhaust pipes and mountings
162 Months or 135,000 Miles
1Reset the oil replacement reminder (“MAINT REQD”)
light after replacing engine oil, if vehicle is equipped
with this light.2Required only if vehicle is operated primarily in desert,
on dirt roads or while towing.3Replace only with 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).
____Front differential oil (AWD GS 300,
AWD IS 250)
____Rack and pinion assembly
____Rear differential oil (IS, GS 300,
____GS 430, LS 430, SC)
____Steering linkage and boots
Date: _____________________ Mileage: _______________________
Notes: MAINTENANCE

Scheduled Maintenance Log
62
S
CHEDULED
M
AINTENANCE
L
OG
168 Months or 140,000 Miles
❏Replace engine oil and oil filter
1
❏Measure thickness of front brake pads and rotors (GS 430, IS)
❏Replace air conditioner filter (GS 300, GS 430, IS 350, LS 430, SC)
❏Re-torque axle shaft flange bolts (all models except ES)
2
❏Rotate tires (all models except IS with different size front and rear tires)
❏Visually inspect brake pads and rotors
❏Road-test vehicle
❏Inspect the following:
2
____Axle shaft boots ____Nuts and bolts on chassis
____Ball joints and dust covers ____Steering linkage and boots
____Engine air filter
174 Months or 145,000 Miles
❏Replace engine oil and oil filter
1
❏Inspect engine coolant
3
❏Re-torque axle shaft flange bolts (all models except ES)
2
❏Rotate tires (all models except IS with different size front and rear tires)
❏Visually inspect brake pads and rotors
❏Road-test vehicle
❏Inspect the following:
2
____Axle shaft boots ____Nuts and bolts on chassis
____Ball joints and dust covers ____Steering linkage and boots
____Engine air filter
Date: _____________________ Mileage: _______________________
Notes:
Date: _____________________ Mileage: _______________________
Notes: MAINTENANCE

Scheduled Maintenance Log
63
❏Replace engine oil and oil filter
1
❏Inspect nuts and bolts on chassis
2
❏Measure brake pad thickness and rotor runout
❏Measure thickness of brake rotors (GS, 430, IS)
❏Replace air conditioner filter
❏Replace brake fluid
❏Replace engine air filter
❏Replace engine coolant
3
❏Re-torque axle shaft flange bolts (all models except ES)
❏Rotate tires (all models except IS with different size front and rear tires)
❏Road-test vehicle
❏Inspect the following:____Axle shaft boots
____Ball joints and dust covers
____Body____
____Brake lines and hoses____
____Drive belts
____Exhaust pipes and mountings
____Front differential oil (AWD GS 300,
AWD IS 250)
180 Months or 150,000 Miles
1Reset the oil replacement reminder (“MAINT REQD”)
light after replacing engine oil, if vehicle is equipped
with this light.2Required only if vehicle is operated primarily in desert,
on dirt roads or while towing.3Replace only with 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).
S
CHEDULED
M
AINTENANCE
L
OG
____Fuel lines and connections, fuel
tank band and fuel tank vapor
vent system hoses
____Fuel tank cap gasket
____Manual transmission oil (IS 250)
____Rack and pinion assembly
____Rear differential oil (IS, GS, LS, SC)
____Steering linkage and boots
____Transmission fluid (ES 330, SC)
Date: _____________________ Mileage: _______________________
Notes: MAINTENANCE

Scheduled Maintenance Log
E
XPLANATION OF
M
AINTENANCE
ITEMS
65
Brake FluidReplace using fluid type specified in your Owner’s
Manual. A qualified technician should perform this
operation.Brake Lines and HosesVisually inspect for proper installation. Check for
chafing, cracks, deterioration and signs of leakage.
Replace any deteriorated or damaged parts. A quali-
fied technician should perform these operations.Brake Linings/Drums and Brake Pads/RotorsCheck the parking brake linings (shoes) and drums
for scoring, burning, fluid leakage, broken parts and
excessive wear. Check brake pads and rotors for exces-
sive wear; check brake rotors for runout. Check brake
calipers for fluid leakage. A qualified technician
should perform these inspections.Charcoal CanisterCheck for internal damage and clogging. If necessary,
clean with compressed air or replace. A qualified tech-
nician should perform these operations.
Dif ferential OilCheck for correct oil level and inspect each differential
component for signs of leakage. If you discover any
leakage, have it repaired by a qualified technician
immediately. Refer to your Owner’s Manualfor fluid
specifications.Drive BeltsInspect for cracks, excessive wear and oiliness. Check
the belt tension and adjust if necessary. Replace the
belts if they are damaged.Engine Air FilterCheck for damage, excessive wear and oiliness.
Replace if necessary.Engine CoolantDrain and flush the cooling system and refill with
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 MAINTENANCE

Scheduled Maintenance Log
E
XPLANATION OF
M
AINTENANCE
ITEMS
66
and organic acids). A qualified technician should per-
form this operation.
Note:Initial replacement is at 120 months/100,000
miles. Replace every 60 months/50,000 miles there-
after.Engine Oil and Oil FilterReplace the oil filter and drain and refill the engine oil
at specified intervals. 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.
Refer to your Owner’s Manual.Engine Valve Clearance (except GS 300 and IS)Inspect for excessive lifter noise and engine vibration
and adjust if necessary. A qualified technician should
perform this operation. (The GS 300 and IS are
equipped with hydraulic valve lash adjusters, which
require no periodic clearance inspection or adjustment.)
Exhaust Pipes and MountingsVisually inspect the exhaust pipes, muffler and hang-
ers for cracks, deterioration and damage. Start the
engine and listen carefully for any exhaust gas leakage.
Tighten connections or replace parts as necessary.Fuel Lines and Connections, Fuel Tank Band and
Fuel Tank Vapor Vent System HosesVisually inspect for corrosion, damage, cracks and
loose or leaking connections. Tighten connections or
replace parts as necessary.Fuel Tank Cap GasketVisually inspect for cracks, deterioration and damage
and replace if necessary.Nuts and Bolts on ChassisRe-tighten the seat mounting bolts and front/rear
suspension member retaining bolts to specified torque. MAINTENANCE

Scheduled Maintenance Log
E
XPLANATION OF
M
AINTENANCE
ITEMS
67
Rack and Pinion AssemblyInspect the rack and pinion assembly for signs of leak-
age, damage and loose electrical connections. Tighten
connections and if you discover any leakage or dam-
age, have it repaired immediately by a qualified tech-
nician.Road TestWhile driving the vehicle, check for proper operation
of engine, transmission, brakes and steering. Also
check for abnormal noise or vibration from any part
of the vehicle.Spark PlugsInstall new plugs of the same type as originally
equipped. Refer to your Owner’s Manual. A qualified
technician should perform this operation.Steering Linkage and BootsWith the vehicle stopped, check for excessive freeplay
in the steering wheel. Inspect the linkage for bending
and damage and the dust boots for deterioration, cracks and damage. Replace any damaged parts. A
qualified technician should perform these operations.
Timing Belt (except GS 300 and IS)Replace every 90,000 miles or 108 months. A qualified
technician should perform this operation. (The GS 300
and IS are equipped with a timing chain, which
requires no periodic inspection.)Tire RotationTires should be rotated according to the instructions
in your Owner’s Manual. When rotating tires, check
pressure and check for damage and uneven wear. If
the spare is not rotated, check the condition and pres-
sure of the spare.Transfer Case Fluid (GS 300 All-Wheel Drive,
IS 250 All-Wheel Drive)Periodic fluid checks and replacement of the transfer
case fluid are not required. Any repairs that require
adding or replacing fluid should be performed by a
qualified technician following procedures in Lexus
service and repair publications.MAINTENANCE