2004 Toyota 4Runner Owners Manual - Page 363

'04 4Runner_U (L/O 0308) Checking the radiator and condenser Coolant type selection Use of improper coolants may damage your engine cooling system. Only use "Toyota Super Long Life Coolant" or similar high quality ethylene glycol based non- silicate, non- amine, non- nitrite, and non- borate coolant with long- life hybrid organic acid technology. (Coolant with long- life hybrid organic acid technology consists of the combination of low phosphates and organic acids.) "Toyota Super Long Life Coolant" is premixed with 50% coolant and 50% deionized water. This coolant provides protection down to about -35_C (- 31_F). If any of the above parts are extremely dirty or you are not sure of their condition, take your vehicle to a Toyota dealer. CAUTION To prevent burning yourself, be careful not to touch the radiator or condenser when the engine is hot. NOTICE To prevent damage to the radiator and condenser, do not perform the work by yourself. NOTICE Do not use plain water alone. Toyota recommends "Toyota Super Long Life Coolant" which has been tested to ensure that it will not cause corrosion nor result in malfunction of your engine coolant system with proper usage. "Toyota Super Long Life Coolant" is formulated with long- life hybrid organic acid technology and has been specifically designed to avoid engine cooling system malfunction on Toyota vehicles. Please contact further details. your Toyota dealer for 363 2004 4RUNNER from Aug. '03 Prod. (OM35811U)