1996 GMC Savana Van Owner's Manual - Page 336

I Long Trip/Highway Maintenance Schedule -- Gasoline Engines 90,000 Miles (150 000 km) 0Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 0Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood insulation for damage or looseness. Adjust or replace as required. This is CE Noise Em'ssiolz Corltml Servic-e.Applicable only tu vehicles sold in the Urz ited S r m s . 0Lubricate chassis components; see footnote # (or every 12 months, whichever occurs first). c7 Check axle fluid level and add fluid as needed. ** 0Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). 0Replace fuel filter. An Emission Control Service. 0If your engine has a thermostatically controlled cooling fan, inspect all hoses and ducts for proper hook-up (or every 12 months, whichever occurs first). Be sure the valve works properly. This is CI Noise EmissioIg Control Service. Applicable only r o rvhicks sold i n the United Stcrtcs. 0Replace air cleaner filter. An Emission Contml Service. I I I I 7-40