2015 Lexus GS350 engine coolant

42Introduction
GENERAL MAINTENANCE AND REGULAR USE
MAINTENANCE
In addition to scheduled maintenance,
your Lexus requires ongoing general
maintenance such as fluid checks
and visual inspections. The recom-
mended guidelines for inspections
are listed below. Please refer to
the “Mainte nance” section of the
Owner’s Manual for a detailed
description of inspection procedures.
Every 30 Days
At least once every 30 days,
perform these inspections:
• Check engine oil level using
the dipstick
• Visually check engine
coolant level on the
see-through reservoir
• Visually check brake fluid level
on the see-through reservoir
• Visually check condition
of battery
• Check level of windshield
washer fluid
• Check tire pressure
• Check tires for damage
and wear
• Check installation of
driver’s floor mat
After a Car Wash
• Check installation of
driver’s floor mat
When Cleaning the Interior
• Remove dirt and dust with a
vacuum cleaner. Wipe dirty
surfaces with a soft cloth
dampened with warm water.
• When cleaning leather interior,
remove dirt and dust with a
vacuum cleaner. Using a
sponge, apply a small amount
of neutral wool detergent mixed
in water, rubbing in a circular
motion. Wipe off any excess
detergent and let leather dry
in an open-air location.
• When cleaning carpet, remove dirt
and dust with a vacuum cleaner.
Apply a foaming-type carpet
cleaner with a sponge or brush,
allowing cleaner to work for a few
minutes to loosen dirt. Continue by
rubbing carpet in a circular motion.
Wipe off any excess cleaner with
a clean cloth. If any dirt remains,
repeat process. Best results are
obtained by keeping the carpet as
dry as possible.

49
SCHEDULED MAINTENANCE LOG
MAINTENANCE
Scheduled Maintenance Log
1 Applies to models with same size front and rear tires and wheels.
18 Months or 15,000 Miles
❑ Inspect and adjust all fluid levels
❑ Replace Smart Key battery
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Visually inspect brake pads, calipers and rotors
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
❑ Inspect the following:
__ Axle shaft boots
__ Ball joints and dust covers
__ Body
__ Brake lines and hoses
__ Engine coolant (see page 69)
__ Exhaust pipes and mountings
Note: If 0W-20 oil was not used at last oil change, or if you drive primarily under certain special operating
conditions, you should also replace the engine oil with 0W-20 oil and replace the oil filter. See page 44 for
conditions that apply. Some conditions require additional maintenance. See below.
If you drive primarily under this special operating condition, perform these
additional items:
Driving on dirt roads or on dusty roads:
❑ Inspect engine air filter
❑ Tighten nuts and bolts on chassis __ Front differential oil (AWD)
__ Rack-and-pinion assembly
__ Rear differential oil
__ Steering linkage and boots
__ Wiper blades
Date: __________________________ Mileage: __________________________

51
SCHEDULED MAINTENANCE LOG
MAINTENANCE
Scheduled Maintenance Log
36 Months or 30,000 Miles
❑ Replace engine oil with 0W-20 oil; replace oil filter
❑ Replace cabin air filter
❑ Replace brake fluid
❑ Replace engine air filter
❑ Replace Smart Key battery
❑ Inspect the following:
__ Axle shaft boots
__ Ball joints and dust covers
__ Body
__ Brake lines and hoses
__ Brake rotor thickness and runout
__ Engine coolant (see page 69)
__ Exhaust pipes and mountings
__ Front differential oil (AWD)
__ Fuel lines and connections, fuel tank band
and fuel tank vapor vent system hoses
If you drive primarily under this special operating condition, perform these
additional items:
Driving on dirt roads or on dusty roads:
❑ Tighten nuts and bolts on chassis __ Fuel tank cap gasket
__ Rack-and-pinion assembly
__ Rear differential oil
__ Steering linkage and boots
__ Transfer case for signs of leakage (AWD)
__ Transmission for signs of leakage
__ Wiper blades
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Visually inspect brake pads, calipers and rotors
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
1 Applies to models with same size front and rear tires and wheels.
Date: __________________________ Mileage: __________________________

53
SCHEDULED MAINTENANCE LOG
Scheduled Maintenance Log
54 Months or 45,000 Miles
❑ Inspect and adjust all fluid levels
❑ Replace Smart Key battery
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Visually inspect brake pads, calipers and rotors
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
❑ Inspect the following:
__ Axle shaft boots
__ Ball joints and dust covers
__ Body
__ Brake lines and hoses
__ Engine coolant (see page 69)
__ Exhaust pipes and mountings
Note: If 0W-20 oil was not used at last oil change, or if you drive primarily under certain special operating
conditions, you should also replace the engine oil with 0W-20 oil and replace the oil filter. See page 44 for
conditions that apply. Some conditions require additional maintenance. See below.
If you drive primarily under this special operating condition, perform these
additional items:
Driving on dirt roads or on dusty roads:
❑ Inspect engine air filter
❑ Tighten nuts and bolts on chassis __ Front differential oil (AWD)
__ Rack-and-pinion assembly
__ Rear differential oil
__ Steering linkage and boots
__ Wiper blades
1 Applies to models with same size front and rear tires and wheels.
Date: __________________________ Mileage: __________________________
MAINTENANCE

55
SCHEDULED MAINTENANCE LOG
MAINTENANCE
Scheduled Maintenance Log
72 Months or 60,000 Miles
❑ Replace engine oil with 0W-20 oil; replace oil filter
❑ Replace cabin air filter
❑ Replace brake fluid
❑ Replace engine air filter
❑ Replace Smart Key battery
❑ Replace spark plugs1
❑ Inspect the following:
__ Axle shaft boots
__ Ball joints and dust covers
__ Body
__ Brake lines and hoses
__ Brake rotor thickness and runout
__ Drive belt
__ Engine coolant (see page 69)
__ Exhaust pipes and mountings
__ Front differential oil (AWD)
If you drive primarily under this special operating condition, perform these
additional items:
Driving on dirt roads or on dusty roads:
❑ Tighten nuts and bolts on chassis __ Fuel lines and connections, fuel tank band
and fuel tank vapor vent system hoses
__ Fuel tank cap gasket
__ Rack-and-pinion assembly
__ Rear differential oil
__ Steering linkage and boots
__ Transfer case for signs of leakage (AWD)
__ Transmission for signs of leakage
__ Wiper blades
❑ Reset maintenance reminder light
❑ Rotate tires2
❑ Visually inspect brake pads, calipers and rotors
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
1 Required under the terms of the Emission Control Warranty.
2Applies to models with same size front and rear tires and wheels.
Date: __________________________ Mileage: __________________________

57
SCHEDULED MAINTENANCE LOG
Scheduled Maintenance Log
90 Months or 75,000 Miles
❑ Inspect and adjust all fluid levels
❑ Replace Smart Key battery
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Visually inspect brake pads, calipers and rotors
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
❑ Inspect the following:
__ Axle shaft boots
__ Ball joints and dust covers
__ Body
__ Brake lines and hoses
__ Drive belt
__ Engine coolant (see page 69)
Note: If 0W-20 oil was not used at last oil change, or if you drive primarily under certain special operating
conditions, you should also replace the engine oil with 0W-20 oil and replace the oil filter. See page 44 for
conditions that apply. Some conditions require additional maintenance. See below.
If you drive primarily under this special operating condition, perform these
additional items:
Driving on dirt roads or on dusty roads:
❑ Inspect engine air filter
❑ Tighten nuts and bolts on chassis __ Exhaust pipes and mountings
__ Front differential oil (AWD)
__ Rack-and-pinion assembly
__ Rear differential oil
__ Steering linkage and boots
__ Wiper blades
1 Applies to models with same size front and rear tires and wheels.
Date: __________________________ Mileage: __________________________
MAINTENANCE

59
SCHEDULED MAINTENANCE LOG
MAINTENANCE
Scheduled Maintenance Log
108 Months or 90,000 Miles
❑ Replace engine oil with 0W-20 oil; replace oil filter
❑ Replace cabin air filter
❑ Replace brake fluid
❑ Replace engine air filter
❑ Replace Smart Key battery
❑ Inspect the following:
__ Axle shaft boots
__ Ball joints and dust covers
__ Body
__ Brake lines and hoses
__ Brake rotor thickness and runout
__ Drive belt
__ Engine coolant (see page 69)
__ Exhaust pipes and mountings
__ Front differential oil (AWD)
If you drive primarily under this special operating condition, perform these
additional items:
Driving on dirt roads or on dusty roads:
❑ Tighten nuts and bolts on chassis __ Fuel lines and connections, fuel tank band
and fuel tank vapor vent system hoses
__ Fuel tank cap gasket
__ Rack-and-pinion assembly
__ Rear differential oil
__ Steering linkage and boots
__ Transfer case for signs of leakage (AWD)
__ Transmission for signs of leakage
__ Wiper blades
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Visually inspect brake pads, calipers and rotors
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
1 Applies to models with same size front and rear tires and wheels.
Date: __________________________ Mileage: __________________________

60
SCHEDULED MAINTENANCE LOG
MAINTENANCE
Scheduled Maintenance Log
114 Months or 95,000 Miles
❑ Inspect and adjust all fluid levels
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Visually inspect brake pads, calipers and rotors
❑ Inspect wiper blades
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
Note: If 0W-20 oil was not used at last oil
change, or if you drive primarily under certain
special operating conditions, you should also
replace the engine oil with 0W-20 oil and
replace the oil filter. See page 44 for conditions
that apply. Some conditions require additional
maintenance. See below.
If you drive primarily under this
special operating condition, perform
these additional items:
Driving on dirt roads or on dusty roads:
❑ Inspect axle shaft boots
❑ Inspect ball joints and dust covers
❑ Inspect engine air filter
❑ Inspect steering linkage and boots
❑ Tighten nuts and bolts on chassis
120 Months or 100,000 Miles
❑ Replace engine oil with 0W-20 oil;
replace oil filter
❑ Replace cabin air filter
❑ Reset maintenance reminder light
❑ Rotate tires1
❑ Replace engine coolant (see page 69)
❑ Visually inspect brake pads, calipers and rotors
❑ Inspect wiper blades
❑ Check installation of driver’s floor mat
❑ Road-test vehicle
If you drive primarily under this
special operating condition, perform
these additional items:
Driving on dirt roads or on dusty roads:
❑ Inspect axle shaft boots
❑ Inspect ball joints and dust covers
❑ Inspect engine air filter
❑ Inspect steering linkage and boots
❑ Tighten nuts and bolts on chassis
1 Applies to models with same size front and rear tires and wheels.
Date: _______ Mileage: ________Date: _______ Mileage: ________