Maintenance and care -> Engine coolant for Your Toyota 4 Runner SUV Fifth Generation (2010-2024)

417  
6-3. Do-it-yourself maintenance  
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 household trash, in sewers or onto the  
ground.  
Call your Toyota 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 properly tightened.  
6
Engine coolant  
The coolant level is satisfactory if it is between the “F” and “L” lines on  
the reservoir when the engine is cold.  
Reservoir cap  
1
“F” line  
2
“L” line  
3
If the level is on or below the “L”  
line, add coolant up to the “F” line.  
(P. 519)  
4RUNNER (U)  
418  
6-3. Do-it-yourself maintenance  
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% deion-  
ized water. (Minimum temperature: -31F [-35C])  
Canada:  
Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deion-  
ized water. (Minimum temperature: -44F [-42C])  
For more details about engine coolant, contact your Toyota dealer.  
If the coolant level drops within a short time of replenishing  
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock  
and water pump.  
If you cannot find a leak, have your Toyota dealer test the cap and check for  
leaks in the cooling system.  
WARNING  
When the engine is hot  
Do not remove the engine coolant reservoir cap or the radiator cap.  
(P. 520)  
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.  
4RUNNER (U)