1993 Buick Roadmaster Owner's Manual - Page 121
1993 Buick Roadmaster Manual
Page 121 highlights
Volts Gage This gage shows voltage in the electrical system. The normal range is 11 to 15 volts. If the gage reading staysin either red range, have your Buick dealer check the electrical system. Tachometer I The tachometer tells you.how fast engine is going. It the (RPM). displays engine speed in revolutions per minute 119
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