1998 GMC Sonoma Owner's Manual - Page 346

Short Trip/City Maintenance Scl-dule 78,000 Miles (130 000 km) (Continued) I velocity joints and axle seals €or leaking. (See footnote **.) 0 Rotate tires. See'Tie Inspection and Rotation"in the Index for proper rotation pattern and additional information. (See footnote +.) 0 Check rear/f.ront axle fluid level add fluid as needed. Check constant and 81,000 Miles (135 000 km) n Change engine oil and filter (or everymonths, whichever occurs first). 3 I DATE ACTUAL MILEAGE SERVICED B Y An Ewission Control Service. 0 Lubricate chassis components (or everymonths, whichever occurs first). 3 (See footnote #.) 0 Check rm/fiont axle fluid level and add fluid needed. Check constant as velocity jointsand axle seals for leaking. (See footnote*e.) 84,000 Miles (140 000 km) 0 Change engine oil and filter every 3 months, whicnever occursfirst). (or An Emission Control Sewice. 0 Lubricate chassis components every 3 months, whichever occmsfirst). (or (See footnote $.) 0 Check readfxontaxle fluid level and fluid as needed. Check constant. add velocity jointsmd 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 7-24