Thanks for the question! Per the manufacturer this is a direct powder coated steel replacement tank for 1991-96 full size GM passenger cars with a 23 gallon tank:
Buick Applications
1992- 1996 Buick Commercial Chassis
1992- 1995 Buick Roadmaster Limited
1992- 1995 Buick Roadmaster Base
1996- 1996 Buick Roadmaster Collector's Edition
1996- 1996 Buick Roadmaster Limited Collector's Edition
Cadillac Applications
1993- 1996 Cadillac Commercial Chassis
1993- 1996 Cadillac Fleetwood
1993- 1995 Cadillac Fleetwood Brougham
Chevrolet Applications
1991- 1992 Chevrolet Caprice Base
1991- 1992 Chevrolet Caprice Classic
1991- 1992 Chevrolet Caprice Classic LTZ
1991- 1996 Chevrolet Caprice
1991- 1994 Chevrolet Commercial Chassis
1994- 1996 Chevrolet Impala