2005 Toyota MR2 Spyder Owners Manual - Page 209

04 09.01 Checking the engine coolant level Look at the see−through coolant reservoir when the engine is cold. The coolant level is satisfactory if it is between the "FULL" and "LOW" lines on the reservoir. If the level is low, add the coolant. (For the coolant type, see "Coolant type selection" described below.) The coolant level in the reservoir will vary with engine temperature. However, if the level is on or below the "LOW" line, add coolant. Bring the level up to the "FULL" line. To ensure excellent lubrication performance for your engine, "Toyota Genuine Motor Oil" is available, which has been specifically tested and approved for all Toyota engines. Please contact your Toyota dealer for further details about "Toyota Genuine Motor Oil". If the coolant level drops within a short time after replenishing, there may be a leak in the system. Visually check the radiator, hoses, drain cock and water pump. If you can find no leak, have your Toyota dealer test the cap pressure and check for leaks in the cooling system. Coolant type selection Use of improper coolants may damage your engine 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.) "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). Z72109 NOTICE Do not use plain water alone. CAUTION To prevent burning yourself, do not remove the coolant reservoir cap or air release valve when the engine is hot. 210 2005 MR2 from Aug. '04Prod. (OM17527U)