Item is the 1980 Cadillac Advance Service Information Manual.  Produced by the Service Department of the Cadillac Motor Car Division of General Motors, this manual contains preliminary service information for the 1980 models, prepared before all of the final production specifications were established.  Complete service information is contained in a final service manual that was released in December 1979.    Refer to the 1979 Cadillac Service Manuals for service procedures common to 1979 and 1980 models. The Final December 1979 Service Manual supercedes this preliminary manual.   This is NOT a reproduction or a reprint!  The overall condition of the manual is good.   Printed in USA Catalog No. S-1726