1999 Subaru Legacy Owner's Manual - Page 336
1999 Subaru Legacy Manual
Page 336 highlights
D Do not splash the engine coolant over painted parts. The alcohol contained in the engine coolant may damage the paint surface. Rubber gaskets HG0115 3. After refilling the reserve tank and the radiator, reinstall the caps and check that the rubber gasket inside the radiator cap is in the proper position. J Changing the coolant D Never attempt to remove the radiator cap until the engine has been shut off and has cooled down completely. Since the coolant is under pressure, you may suffer serious burns by a spray of boiling hot coolant when the cap is removed. D Never let engine coolant contact your eyes because engine coolant can be harmful to your eyes. If engine coolant gets in your eyes, immediately flush them thoroughly with clean water. For safety, when performing this work, wearing eye protection is advisable. WARNING 10-16