2005 Lexus GX 470 Owners Manual - Page 492
2005 Lexus GX 470 Manual
Page 492 highlights
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. (Coolant with long-life hybrid organic acid technology is a combination of low phosphates and organic acids.) See "Checking the engine coolant level" on page 560 for details of coolant type selection. 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). NOTICE Do not use plain water alone. 467