2003 Lexus GS 300 Owners Manual - Page 287
2003 Lexus GS 300 Manual
Page 287 highlights
ENGINE The engine cooling system is integral to maximizing performance of your Lexus vehicle. In line with this, it is strongly recommended that you use "Toyota Genuine Long Life Coolant" for protecting the system, as it is an ethylene-glycol based premium antifreeze coolant with excellent corrosion protection properties that has been specifically formulated for use in Lexus vehicles. Please contact your Lexus dealer for further details about "Toyota Genuine Long Life Coolant". CHECKING THE RADIATOR AND CONDENSER If either of the above parts are extremely dirty or you are not sure of their condition, take your vehicle to your Lexus 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. 266