Page 234 of 324 pages for Buick RIVIERA 1993 Owner Manual.
Radiator Pressure Cap
Add euuianl mix at the rcﬂﬂhtry Dink, bill be. careful nu! “ﬁle“ you lemme you; radiator my,“ call an ACE to splll 1L cap is recommended.
Engine cmlanl temperature is mnuullcd by a Thu-meant in the engine cement system. The themes-lat Mops the new nr coolant through the radiator unli! the eoelanl reaches a preset temperature.
When you replace your Ihennomt. an ACE lhennoslat is recommended.