2007 Toyota Highlander Owners Manual - Page 403

'07 HIGHLANDER HV_U (L/O 0608) Checking the radiators and condenser Coolant type selection Use of improper coolants may damage your 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 is a combination of low phosphates and organic acids.) For the U.S.A.-"Toyota Super Long Life Coolant" is a mixture of 50% coolant and 50% deionized water. This coolant provides protection down to about −35_C ( −31_F). For Canada-"Toyota Super Long Life Coolant" is a mixture of 55% coolant and 45% deionized water. This coolant provides protection down to about −42_C ( −44_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 they may be hot after driving. NOTICE 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 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 cooling system malfunction on Toyota vehicles. Please contact further details. your Toyota dealer for To prevent damage to the radiators and condenser, do not perform the work by yourself. NOTICE Do not use plain water alone. 389 2007 HIGHLANDER HV from July '06 Prod. (OM48685U)