1997 Chevrolet Astro Owner's Manual - Page 344
1997 Chevrolet Astro Manual
Page 344 highlights
I I Short Trip/City Maintenance Schedule - In heavy city traffic where the outside temperature regularly reaches O F 90 (32°C) or higher. - In hilly or mountainous terrain. - When doing frequent trailer towing. - Uses such asfound in taxi, police or delivery service. If you do not use your vehicle under any of these conditions, change the$uid and filter every 30,000miles (50 000 km). I 0Replace air cleaner filter. An Emission Control Service. 40,000 Miles (100 000 km) (Continued) 0Inspect fuel tank, cap and linesfor damage or leaks. Inspectfuel cap gasket for any damage. Replaceparts as needed. An Emission Control Service. (See footnote?.) 0Rotate tires. See "Tire Inspection and Rotation'' in the Index forproper rotation pattern and additional information. (See footnote +.) El Inspect engine accessory drive belt. 0Replace fuel filter. An Emission Control Service. (See footnote?.) DATEMILEAGE ACTUAL SERVICED B Y 7-20