GMC 1996 Sierra Owner's Manual page 337

I
Short TripKity Maintenance Schedule
--
Gasoline Engines
I
24,000 Miles (40 000 km)
17
Change engine
oil
and filter (or every
3 months, whichever occurs first).
An Etnissiorz Control
Service.
0
Lubricate chassis components; see footnote #
(or every 3 months, whichever occurs first).
El
Check readfront axle fluid level and add
fluid as needed. Check constant velocity
joints and axle seals for leaking.
'k*
I
DATE
I
ACTUAL MILEAGE
SERVICED
B Y
I
27,000 Miles (45 000 km)
0
Change engine oil and filter (or every
3
months, whichever occurs first).
At1 Emission Control Service.
0
Lubricate chassis components; see footnote #
(or every 3 months, whichever occurs first).
El
Check readfront axle fluid level and add
fluid as needed. Check constant velocity
joints and axle seals for leaking.
M
ACTUAL MILEAGE SERVICED B Y
7-11