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4-3. Do-it-yourself maintenance
Engine compartment
IS350C
Battery (P. 433)
Engine oil level dipstick (P. 4 2 6 )
Engine oil filler cap (P. 4 2 6 )
Brake fluid reservoir (P. 4 3 1 )
Fuse boxes ( P. 4 5 8 )Washer fluid tank
(P. 4 3 6 )
Electric cooling fans
Condenser ( P. 4 3 1 )
Radiator ( P. 4 3 1 )
Engine coolant reservoir (P. 4 2 9 )
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4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250C
Battery (P. 433)
Engine oil level dipstick (P. 4 2 6 )
Engine oil filler cap (P. 4 2 6 )
Brake fluid reservoir (P. 4 3 1 )
Fuse boxes ( P. 4 5 8 )Washer fluid tank
(P. 4 3 6 )
Electric cooling fans
Condenser ( P. 4 3 1 )
Radiator ( P. 4 3 1 )
Engine coolant reservoir (P. 4 2 9 )
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4-3. Do-it-yourself maintenance
Engine oilWith the engine at operating temperat ure and turned off, check the oil
level on the dipstick.
■ Checking the engine oil
Park the vehicle on level grou nd. After warming up the engine
and turning it off, wait more than five minutes for the oil to drain
back into the bottom of the engine.
Hold a rag under the end and pull
the dipstick out.
Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end, pull the dipstick out and check the
oil level.
Wipe the dipstick and reinsert it fully.
Low
Full
STEP1
STEP2
STEP3
STEP4
STEP5
STEP6
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4-3. Do-it-yourself maintenance
4
Maintenance and care
■Adding engine oil
If the oil level is below or near the
low level mark, add engine oil of
the same type as already in the
engine.
Make sure to check th e oil type and prepare the items needed before
adding oil.
Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.
Engine oil selection P. 5 6 4
Oil quantity
(Low Full)1.6 qt. (1.5 L, 1.3 Imp. qt.)
ItemsClean funnel
STEP1
STEP2
STEP3
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4-3. Do-it-yourself maintenance
4
Maintenance and care
Engine coolantThe coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the engine is cold.
Reservoir cap
“FULL”
“LOW”
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
●Avoid overfilling, or the engine could be damaged.
●Check the oil level on the dipstick every time you refill the vehicle.
●Be sure the engine oil filler cap is properly tightened.
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6-1. Specifications
Lubrication system
*: The engine oil capacity is a reference quantity to be used when exchanging.Warm up and turn off the engine, wait more than 5 minutes, and check the oil
level on the dipstick.
■ Engine oil selection
IS250C
“Toyota Genuine Motor Oil” is used in your Lexus vehicle. Use Lexus
approved “Toyota Genuine Motor Oil” or equivalent to satisfy the follow-
ing grade and viscosity.
Oil grade: ILSAC multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good
starting in cold weather.
If SAE 0W-20 is not available,
SAE 5W-20 oil may be used.
However, it must be replaced with
SAE 0W-20 at the next oil
change.
Oil capacity
(Drain and refill
reference*)
without filter
with filter
6.2 qt. (5.9 L, 5.2 Imp. qt.)
6.6 qt. (6.3 L, 5.5 Imp. qt.)
Outside temperature