1998 GMC SIERRA gas mileage

I Short Trip/City Maintenance Schedule -- Gasoline Engines I
Lubricate chassis components (or every 3 monms, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
(See
footnote
#.)
velocity joints and axle seals for leaking. (See footnote **.)
60,000 Miles (100 000 km)
Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.
Lubricate chassis components (or every 3 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
For Two-Wheel-Drive vehicles only: Clean and repack the front wheel
Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood
(See footnote
#.)
velocity
joints and axle seals for leaking. (See footnote **.)
bearings (or at each brake relining, whichever occurs first).
insulation for damage or looseness. Adjust or replace
as required.
This is a Noise Emission Control Service. Applicable only to vehicles
sold in the United States.
An Emission Control Service.
0 Inspect engine accessory drive belt.
DATE I
MILEAGE
(Continued)
ProCarManuals.com

Short TripKity Maintenance Schedule -- Gasoline Engines
60,000 Miles (100 000 km) (Continued)
Replace fuel filter.
0 Conduct Exhaust Gas Recirculation (EGR) system inspection as described in
An Emission Control Service. (See footnote?.)
the service manual.
An Emission Control Service. (See footnote?.)
0 Conduct evaporative control system inspection. Check all fuel and vapor lines
and hoses for proper hook-up, routing and condition. Check that the purge
valve works properly
(if equipped). Replace as needed.
An Emission Control Service. (See footnote?.)
for any damage. Replace parts as needed.
An Emission Control Service. (See footnote?.)
rotation pattern and additional information. (See footnote
+.)
I7 Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket
I71 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
63,000 Miles (105 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
17 Lubricate chassis components (or every 3 months, whichever occurs first).
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
MILEAGE
ACTUAL SERVICED BY:
7-20
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I Short Trip/City Maintenance Schedule -- Gasoline Engines I
66,000 Miles (110 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
0 Lubricate chassis components (or every 3 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
Rotate tires. See ”Tire lnspection and Rotation” in the Index for proper
SERVICED BY: An Emission Control Service.
(See footnote #.)
velocity joints and axle seals for leaking. (See footnote *’*.)
rotation pattern and additional information. (See footnote +.)
69,000 Miles (115 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
0 Lubricate chassis components (or every 3 months, whichever occurs first).
I7 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 **.)
72,000 Miles (120 000 km)
Change engine oil and filter (or every 3 months, whichever occurs first’).
Au Emission Control Service.
0 Lubricate chassis components (or every 3 months, whichever occurs first).
(See footnote #.)
I DATE I
I MILEAGE ACTUAL I SERVICEDBY I
DATE
I MILEAGE 1 SERVICEDBY I
7-21
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I Short Trip/City Maintenance Schedule -- Gasoline Engines
0 Lubricate chassis components (or every 3 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 +.)
81,000 Miles (135 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
0 Lubricate chassis components (or every 3 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
AI? Emission Control Service.
(See footnote #.)
velocity joints and axle seals for leaking. (See footnote **.)
84,000 Miles (140 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
17 Lubricate chassis components (or every 3 months, whichever occurs first).
An Emission Control Service.
(See footnote #.)
(Continued)
DATE I
DATE
MILEAGE
7-23
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Short TripKity Maintenance Schedu’? -- Gasoline Engines
84,000 Miles (140 000 km) (Continued)
0 Check rear/front axle fluid level and add fluid as needed. Check constant
e3 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
velocity
joints and axle seals for leaking. (See footnote
*:*.)
rotation pattern and additional information. (See footnote +.)
87,000 Miles (145 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.
Lubricate chassis components (or every 3 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
**.)
90,000 Miles (I50 000 km)
Change engine oil and filter (or every 3 months, whichever occurs first).
0 Lubricate chassis components (or every 3 months, whichever occurs first).
17 Check rear/front axle fluid level and add fluid as needed. Check constant
0 For Two-Wheel-Drive vehicles only: Clean and repack the front wheel
An. Emission Control Service.
(See footnote #.)
velocity joints and axle seals for leaking. (See footnote **.)
bearings (or at each brake relining, whichever occurs first).
DATE I
MILEAGE
DATE I
MILEAGE
ACTUAL SERVICED BY
7-24
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I Short Trip/City Maintenance Schedule -- Gasoline Engines
0 Replace fuel filter. An Emissior? Control Service. (See footnote?.)
0 Rotate tires. See "Tire Inspection and Rotation?' in the Index for proper
rotation pattern and additional information. (See footnote
+.)
0 Vehicles With GVWR Above 8,500 lbs. Only: Inspect shields and underhood
insulation for damage or looseness. Adjust
or replace as required.
This is c1 Noise E1ni.wion Control Sprvic't.'. Applic*ahlc. only ro ~c3l.zicks
sold in the United States.
93,000 Miles (155 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
0 Lubricate chassis components (or every 3 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid as needed. Check constant
An En1ission Corztrol Servic-e.
(See footnote #.)
velocity joints and axle seals for leaking. (See footnote 'Ic4'.)
96,000 Miles (160 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
0 Lubricate chassis components (or every 3 months, whichever occws first).
An Emission Control Service.
(See footnote #.)
(Continued)
DATE
I MILEAGE ACTUAL I SERVICEDBY I
7-25
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I Short Trip/City Maintenance Schedule -- Gasoline Engines I
96,000 Miles (160 000 km) (Continued)
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
velocity
joints and axle seals for leaking. (See footnote
**.)
rotation pattern and additional information. (See footnote +.)
99,000 Miles (165 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs first).
0 Lubricate chassis components (or every 3 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 **.)
100,000 Miles (166 000 km)
0 Inspect spark plug wires.
0 Replace spark plugs.
0 Change automatic transmission fluid and filter if the vehicle’s GVWR is over
8600 lbs. or if the vehicle is mainly driven under one or more of these conditions:
- In heavy city traffic where the outside temperature regularly reaches
An Emission Control Service.
An Emission Control Service.
90°F (32°C) or higher.
DATE I
MILEAGE
DATE MILEAGE
ACTUAL SERVICED BY:
7-26
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Short TripKity Maintenance Schedule -- Gasoline Engines
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery service.
Manual transmission fluid doesn’t require change.
previously and, therefore, haven‘t changed your automatic transmission fluid,
change both the fluid and filter.
Manual transmission fluid doesn’t require change.
17 Inspect Positive Crankcase Ventilation (PCV) valve.
Arz Emission Control Service.
0 If you haven’t used your vehicle under severe service conditions listed
150,000 Miles (240 000 km)
0 Drain, flush and refill cooling system (or every 60 months since last service,
whichever occurs first). See “Engine Coolant”
in the Index for what to use.
DATE
I MILEAGE ACTUAL I SERVICED BY:
Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test I I
cooling system and pressure cap.
AH Emission Control Service.
7-27
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