IS350 AWD/IS350/IS300- Page 292

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6-3. Do-it-yourself maintenance

■

Engine coolant reservoir

The coolant level is satisfactory if it is 
between the “FULL” and “LOW” lines 
on the reservoir when the engine is 
cold.



IS350 AWD/IS350/IS300



IS300



IS500

Reservoir cap
“FULL” line
“LOW” line

If the level is on or below the “LOW” line, 
add coolant up to the “FULL” line. 
(



P.357)

■

Intercooler coolant reservoir 
(IS300)

The coolant level is satisfactory if it is 

WARNING

●

Dispose of used oil and filters only in a 

safe and acceptable manner. Do not 

dispose of used oil and filters in house-

hold trash, in sewers or onto the 

ground.

Call your Lexus dealer, service station 

or auto parts store for information 

concerning recycling or disposal.

●

Do not leave used engine oil within the 

reach of children.

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 prop-

erly tightened.

Checking the coolant

A

B

C