GMC 1994 Yukon Owner's Manual page 347

GASOLINE ENGINES W/TH HEAVY DUTY EM/SSIONS
-
MAINTENANCE SCHEDULE lu (continued)
0 0 0
0
0 0 0 0 0
0
THE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES (100 000 km) ARE TO BE
DONE AFTER 60,000 MILES AT THE SAME INTERVALS.
TO407
7- 13