2004 Lexus RX 330 Owners Manual - Page 549

DRIVING TIPS WINTER DRIVING TIPS Make sure your coolant is properly protected against freezing. 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. See "Checking the engine coolant level" on page 643 for details of coolant type selection. "Toyota Super Long Life Coolant" is pre- mixed with 50% coolant and 50% deionized water. This coolant provides protection down to about -35_C (-31_F). NOTICE Do not use plain water alone. 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 691 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 642 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. 526 system for loose