2024 Lexus ES 300h Engine Oil and Fluids Owner’s Manual
The 2024 Lexus ES 300h needs high-quality engine oil and fluids to run well. These critical parts ensure smooth operation, fuel efficiency, and vehicle longevity, making driving reliable and fun.
2024 Lexus LS Review, Specs, Price and Mileage (Brochure)
Checking the engine oil
With the engine at operating temperature and turned off, check the oil level on the dipstick.
- Park the vehicle on level ground.
After warming up the engine and turning off the hybrid system, wait about 5 minutes for the oil to drain back into the bottom of the engine. - Holding a rag under the end, pull the dipstick out.
- Wipe the dipstick clean.
- Reinsert the dipstick fully.
- Holding a rag under the end, pull the dipstick out and check whetherthe oil level is above low level mark.
A Low level mark
The shape of the dipstick may differ depending on the type of vehicle or engine. - Wipe the dipstick and reinsert it fully.
NOTICE
To prevent serious engine damage Check the oil level on a regular basis.
Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the following situations, oil consumption may increase, and engine oil may need to be refilled in between oil maintenance intervals.
- When the engine is new, for example directly after purchasing the vehicle or after replacing the engine
- If low quality oil or oil of an inappropriate viscosity is used
- When driving at high engine speeds or with a heavy load, or when driving while accelerating or decelerating frequently
- When leaving the engine idling for a long time, or when driving frequently through heavy traffic
Engine oil level rise
If the vehicle is repeatedly driven without the engine warmed up, moisture caused by dew condensation inside the engine or fuel which did not burn mixes into the engine oil, resulting in a rise in engine oil level. However, this is not a malfunction.
For example, the engine become difficult to be warmed up in the following situations.
- When driving a short distance
- When driving at a low speed
- When the outside temperature is low
When checking the engine oil, make sure that the engine is warmed up. If the engine oil level exceeds the refill upper limit mark, contact your Lexus dealer.
Adding engine oil
Checking the oil type and preparing the items needed
Make sure to check the oil type and prepare the items needed before adding oil.
- Engine oil selection
- Oil quantity (Low level mark
Refill upper limit mark)
1.6 qt. (1.5 L, 1.3 Imp.qt.) - Item
Clean funnel
Adding engine oil
If the oil level is below or near the low-level mark, add engine oil of the same type as that already in the engine.
- Remove the oil filler cap by turning it counterclockwise.
- Add engine oil slowly, checking the dipstick.
Make sure that the oil level does not exceed the refill upper limit mark and is between the low level mark and refill upper limit mark.
A Low level mark
B Refill upper limit mark
The shape of the dipstick may differ depending on the type of vehicle orengine. - Install the oil filler cap by turning it clockwise.
After changing the engine oil
The engine oil maintenance data should be reset. Perform the following procedures:
- While the vehicle is stopped, press
of the meter control switches. - Press
of the meter control switches, and select
- Press or of the meter control switches, select “Vehicle Settings”, and then press “OK”.
- Press
of the meter control switches, select “Oil Maintenance”, and then press “OK”. - Select “Yes” and then press “OK”.
A message will be displayed on the multi information
display when the reset procedure has been completed.
WARNING
Used engine oil
- Used engine oil contains potentially harmful contaminants which may cause skin disorders such as inflammation and skin cancer, so care should be taken to avoid prolonged and repeated contact. To remove used engine oil from your skin, wash thoroughly with soap and water.
- 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
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.
Checking the coolant
The coolant level is satisfactory if it is between the “F”/“FULL” and
“L”/“LOW” lines on the reservoir when the hybrid system is cold.
Engine coolant reservoir
A Reservoir cap
B “F” line
C “L” line
If the level is on or below the “L” line, add coolant up to the “F” line.
Power control unit coolant reservoir
A Reservoir cap
B “FULL” line
C “LOW” line
If the level is on or below the “LOW” line, add coolant up to the “FULL” line.
Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid organic acid technology.
U.S.A.:
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water. (Minimum temperature: -31°F [-35°C])
Canada:
“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Minimum temperature: -44°F [-42°C])
For more details about coolant, contact your Lexus dealer.
If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine/power control unit coolant reservoir caps, drain cock and water pump. If you cannot find a leak, have your Lexus dealer test the cap and check for leaks in the cooling system.
WARNING
When the hybrid system is hot
Do not remove the engine/power con-trol unit coolant reservoir caps or the radiator cap.
The cooling system may be under pressure and may spray hot coolant if the cap is removed, causing serious injuries, such as burns.
NOTICE
When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of water and antifreeze must be used to provide proper lubrication, corrosion protection and cooling. Be sure to read the antifreeze or coolant label.
If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.
Checking the radiator and condenser
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of their condition, have your vehicle inspected by your Lexus dealer.
WARNING
When the hybrid system is hot
Do not touch the radiator or condenser as they may be hot and cause serious injuries, such as burns.
Checking and adding the brake fluid
Checking fluid level
The brake fluid level should be between the “MAX” and “MIN” lines on the tank.
Adding fluid
Make sure to check the fluid type and prepare the necessary items.
- Fluid type
FMVSS No.116 DOT 3 or SAE J1703 brake fluid
FMVSS No.116 DOT 4 or SAE J1704 brake fluid
- Item Clean funnel
Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss of braking efficiency. Use only newly opened brake fluid.
WARNING
When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damage painted surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean water immediately.
If you still experience discomfort, see a doctor.
NOTICE
If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serious problem.
Adding the washer fluid
If any washer does not work or “Wind-shield Washer Fluid Low” is shown on the multi-information display, the washer tank may be empty. Add washer fluid.
WARNING
When adding washer fluid
Do not add washer fluid when the hybrid system is hot or operating as washer fluid contains alcohol and may catch fire if spilled on the engine etc.
NOTICE
Do not use any fluid other than washer fluid
Do not use soapy water or engine anti-freeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces, as well as damaging the pump leading to problems of the washer fluid not spraying.
Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bottle.
FAQ’s
The engine oil capacity for the 2024 Lexus ES 300h is approximately 4.8 quarts (4.5 liters) with a filter change.
Use the dipstick located in the engine bay. Ensure the vehicle is on level ground, remove the dipstick, wipe it clean, reinsert it fully, and then check the oil level indicated.
The 2024 Lexus ES 300h uses DOT 3 or DOT 4 brake fluid, which should be checked regularly and replaced as needed.
Check the washer fluid reservoir periodically and refill it when the fluid level is low. The reservoir is usually transparent or has a level indicator.
Useful Links
View full PDF: 2024 Lexus ES 300h Owner’s Manual | Auto User Guide