2004 Lexus GX 470 User Guide - Page 479

DRIVING TIPS Check the condition of the battery and cables. Cold temperatures reduce the capacity of any battery, so it must be in top shape to provide enough power for winter starting. Page 611 tells you how to visually inspect the battery. Your Lexus dealer and most service stations will be pleased to check the battery charge level. Make sure the engine oil viscosity is suitable for the cold weather. See page 565 for recommended viscosity. Leaving a heavy summer oil in your vehicle during winter months may cause harder starting. If you are not sure about which oil to use, call your Lexus dealer - they will be pleased to help. Check the electronic ignition connections or obvious damage. Keep the door locks from freezing. Squirt lock de-icer or glycerine into the locks to keep them from freezing. Use a washer fluid containing an antifreeze solution. This product is available at your Lexus dealer and most auto parts stores. Follow the manufacturer's directions for how much to mix with water. system for loose NOTICE Do not use engine antifreeze or any other substitute because it may damage your vehicle's paint. 456