1998 GMC ENVOY engine

I Long Tripmighway Maintenance Schedule I
7,500 Miles (I2 500 km)
0 Change engine oil and filter (or every 12 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components (or every 12 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
(See footnote
#.)
velocity
joints and axle seals for leaking. (See footnote **.)
rotation pattern and additional information. (See footnote +.)
15,000 Miles (25 000 km)
0 Change engine oil and filter (or every 12 months, whichever occurs first).
0 Lubricate chassis components (or every 12 months, whichever occurs first).
(See footnote
#.)
0 Check readfront axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote
**.)
Change automatic transmission fluid and filter if the vehicle is mainly driven
under one or more
of these conditions:
- In heavy city traffic where the outside temperature regularly reaches 90°F
- In hilly or mountainous terrain.
An
Emission Control
Service.
(32°C) or higher.
DATE I
MILEAGE
DATE
7-28
ProCarManuals.com

I Long TripMighway Maintenance Schedule I
-
- When doing frequent trailer towing.
2 Uses such as found in taxi, police or delivery service.
lfyo~t do not use your vellicle under any qf these conditions, cnnnge the fluid
and
filter every 50,000 miles (83 000 km).
rotation pattern and additional information. (See footnote +.)
0 Rotate tires. See “Tire Inspection and Rotation’’ in the Index for proper
22,500 Miles (37 500 km)
0 Change engine oil and filter (or every 12 months, whichever occurs first).
0 Lubricate chassis components (or every 12 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
An Emission Control Service.
(See footnote
#.)
velocity joints and axle seals for leaking. (See footnote **.)
rotation pattern and additional information. (See footnote +.)
DATE
30,000 Miles (50 000 km)
Change engine oil and filter (or every 12 months, whichever occurs first).
An Emission Control Service. MILEAGE
(Continued)
7-29
ProCarManuals.com

37,500 Miles (62 500 km)
Change engine oil and filter (or every 12 months, whichever occurs first).
0 Lubricate chassis components (or every I2 months, whichever occurs first).
Check rear/front axle fluid level and add fluid as needed. Check constant
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
An Emission Control Srrvice.
(See footnote #.)
velocity joints and axle seals for leaking. (See footnote
rotation pattern and additional information. (See footnote
+.)
45,000 Miles (75 000 km)
0 Change engine oil and filter (or every 12 months, whichever occurs first).
0 Lubricate chassis components (or every I2 months, whichever occurs first).
(See footnote
#. j
0 Check readfront axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote
?j
0 Change automatic transmission fluid and filter if the vehicle is mainly driven
under one or more of these conditions:
- In heavy city traffic where the outside temperature regularly reaches 90°F
AI? Emission Coutrol Service.
(32°C) or higher.
I DATE I
SERVICED BY
DATE 1
MILEAGE I SERVICED BY I
(Continued)
7-31
ProCarManuals.com

I
I Long Tripmighway Maintenance Schedule b
45,000 Miles (75 000 km) (Continued)
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these conditions, change the fluid
andfilter every
50,000 miles (83 000 km).
rotation pattern and additional information. (See footnote +.)
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
50,000 Miles (83 000 km)
0 If you haven’t used your vehicle under severe conditions listed previously and,
therefore, haven’t changed your automatic transmission fluid, change both the
fluid and filter.
52,500 Miles (87 500 km)
0 Change engine oil and filter (or every 12 months, whichever occurs first).
Lubricate chassis components (or every 12 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
An
Emission Control Service.
(See footnote
#.)
velocity joints and axle seals for leaking. (See footnote **.)
DATE I
MILEAGE SERVICED BY:
I I
~
DATE I
I I I
7-32
ProCarManuals.com

I Long Tripmighway Maintenance Schedule I
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
rotation pattern and additional information. (See footnote
+.)
60,000 Miles (100 000 km)
0 Change engine oil and filter (or every 12 months, whichever occurs first).
0 Lubricate chassis components (or every 12 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
0 Change automatic transmission fluid and filter if the vehicle is mainly driven
An
Emission Control Service.
(See footnote
#.)
velocity joints and axle seals for leaking. (See footnote ‘K*.)
under one or more of these conditions:
- In heavy city traffic where the outside temperature regularly reaches 90°F
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery service.
If you do not use your vehicle under any of these conditions, change the fluid
and 50,000 miles (83 000 km).
(32°C) or higher.
(Continued)
DATE I
7-33
ProCarManuals.com

I Long Trip/Highway Maintenance Schedule I
60,000 Miles (100 000 km) (Continued)
0
0
0
0
Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
rotation pattern and additional information. (See footnote
+.)
Inspect engine accessory drive belt.
An Emission Control Service.
Replace fuel filter.
An Emission Control Service. (See footnote?.)
Replace air cleaner filter.
An Emission Control Service.
Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket
for any damage. Replace parts
as needed.
An Emission Control Service. (See footnote?.)
67,500 Miles (112 500 Lm)
0 Change engine oil and filter (or every 12 months, whichever occurs first).
0 Lubricate chassis components (or every 12 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
An Enzission Control Service.
(See footnote
#.)
velocity joints and axle seals for leaking. (See footnote *:k.)
rotation pattern and additional information. (See footnote +.)
I DATE
MILEAGE
7-34
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75,000 Miles (125 000 km)
0 Change engine oil and filter (or every 12 months, whichever occurs first).
0 Lubricate chassis components (or every 12 months, whichever occurs first),
AH Emissior.1 Control Service.
(See footnote
#.)
0 Check readfront axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote
:!:*.)
0 Change automatic transmission fluid and filter if the vehicle is mainly driven
under one
or more of these conditions:
- In heavy city traffic where the outside temperature regularly reaches 90°F
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
(32 "C) or higher.
- Uses such as found in taxi, police or delivery service.
rfvo1.1 do rzot r.1,~ your vehicle 1.1rzder- my of these colditims, change tlleJlld
andfi.ltel-
every 50,000 miles (83 000 km).
0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
rotation pattern and additional information. (See footnote
+.)
I I
DATE I
1 MILEAGE ACTUAL I SERVICEDBY I
7-35
ProCarManuals.com

I Long Trip/Highway Maintenance Schedule I
82,500 Miles (137 500 km)
0
Change engine oil and filter (or every 12 months, whichever occurs first).
An Emission Control Service.
Lubricate chassis components (or every 12 months, whichever occurs first).
(See footnote
#.)
Check readfront axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote
**.)
Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
rotation pattern and additional information. (See footnote
+.)
90,000 Miles (150 000 km)
0 Change engine oil and filter (or every 12 months, whichever occurs first).
An Emission Control Service.
0 Lubricate chassis components (or every 12 months, whichever occurs first).
(See footnote
#.)
0 Check readfront axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote
**.)
0 Change automatic transmission fluid and filter if the vehicle is mainly driven
under one or more
of these conditions:
- In heavy city traffic where the outside temperature regularly reaches 90°F
- In hilly or mountainous terrain.
(32” C) or higher.
DATE I
MILEAGE
I DATE I
+
MILEAGE ACTUAL SERVICED BY
7-36
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