Page 202 of 324 pages for Buick RIVIERA 1993 Owner Manual.
Steam and scalding llqulds "em a hot cooling system can blow out and burn you badly. They are under pressure. and It you turn the radiator
pressure esp - even a little — they can some out at hlgh speed. Never turn the up when the cooling system. lncludlng the radiator pressure cap, is hot. Wail tor the coollng system and radiator pressure cap to cool it you ever hays to turn the pressure cap.