1998 GMC Suburban Owner's Manual - Page 376

I Short Trip/City Maintenance Schedule -- Gasoline Engines I 21,000 Miles (35 000 km) (Continued) Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) 0 Check readfrontaxle fluid level andadd fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 24,000 Miles (40 000 km) 0 Change engineoil and filter (or every 3 months, whichever occurs first). An EmissionControl Service. 0 Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) 0 Check readfront axle fluid level add fluid as needed. Check constant and velocity joints and axle seals for leaking. (See footnote **.) 0 Rotate tires. See "Tire Inspection and Rotation'' in the Index for proper rotation pattern and additional information. (See footnote +.) DATE I 27,000 Miles (45 000 km) 0 Change engine oiland filter (or every 3 months, whichever occurs first). An EmissionControl Service. 0 Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) 17 Check readfront axle fluid level add fluid as needed. Check constant and velocity joints and axle seals forleaking. (See footnote**.)