Fluid capacities, tune-up values and fuel economy at a glance.
Engine oil capacity6 qtOEM · verified
Engine oil type5W-30 APIOEM · verified
Lug nut torque140 ft-lbsOEM · verified
Fitment & sizes
Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.
From the factory this vehicle uses a BCI 78 · 600 CCA battery, OE oil filter 12731172. Note the factory fuel filter is now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.
Battery groupBCI 78 · 600 CCAOEM · verified
Tire sizeP235-75R15OEM · verified
Wheel / rim7-JJ inOEM · verified
OE service part numbers OEM · verified
Engine oil filter
12731172
Engine air filter
22845992 alt 15908916
Fuel filter
25171792 discontinued
Spark plug
12621258
Front wiper blades
15214346
Serpentine belt
12576447 alt 12637204
Thermostat
12561155 alt 12571261
Cabin air filter
19257782 alt 12489479
Service quick specs OEM factory data
Capacities, torques and tune-up values from the factory service manual.
This engine holds 6 qt of 5W-30 API engine oil, 80W-90 · GL-5 in the differential. Torque lug nuts to 140 ft-lbs, the oil drain plug to 18.0 ft-lbs. The firing order is 1-8-7-2-6-5-4-3. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.
Lubricants & capacities
Differential Gear Oil
80W-90 · GL-5
Differential Gear Oil Capacity
8.5 qt
Engine Oil
5W-30 · API
Engine Oil Capacity
6 qt
Engine Oil
5W-30 · API
Engine Oil Capacity
6 qt
Engine torques
Cylinder Head Steps
Install the NEW cylinder head bolts.
Engine Oil Pan Drain Plug
18.0 ft-lbs
Engine Oil Pan Drain Plug
18.0 ft-lbs
Engine Valve Cover Bolts
9.0 ft-lbs
Engine Valve Cover Bolts
9.0 ft-lbs
Chassis torques
Leaf Spring to Chassis Bracket
110.0 ft-lbs
Leaf Spring to Rear Shackle
70.0 ft-lbs
Leaf Spring Rear Shackle to Chassis Bracket
70.0 ft-lbs
Lug Nuts
140 ft-lbs
Front Wheel Hub
177 ft-lbs
Ignition
Cylinder Firing Order
1-8-7-2-6-5-4-3
Cylinder Firing Order
1-8-7-2-6-5-4-3
Spark Plug Manufacturer
AC Delco
Spark Plug Gap
0.060 in
Spark Plug Torque
11.0 ft-lbs
Spark Plug Manufacturer
AC Delco
Spark Plug Type
AC 41-985
Spark Plug Gap
0.060 in
Battery & A/C
Refrigerant
R134a
Refrigerant Capacity
Front A/C only, 2.00; front and rear A/C, 3.00. lbs
Oil Group
PAG
Oil Type
150
Oil Capacity
Front A/C only, 8.00; front and rear A/C, 11.00. oz
Optional BCI Group Number
78 - Police and Opt.
Optional BCI Cranking Performance
770 - Police and Opt. cca
Standard BCI Group Number
78
Service checks
Pressure Test
15 psi
Radiator Cap Pressure Relief
15 psi
Thermostat Opening Temperature
188-206 °F
Engine Compression
100 Minimum psi
Engine Compression
215 Nominal psi
Engine Compression
100 Minimum psi
Engine Compression
100 Minimum psi
Engine Oil Pressure
6
Brakes
Torque Caliper to Bracket
15 ft-lbs
Torque to Knuckle
38 ft-lbs
Minimum Pad Thickness
Front: 0.030; Rear: 0.030 specification
Drum Runout Limit
0.006 in
Drum Nominal Diameter
10 in / 11.15 in / 13 in
Drum Maximum Machining
10.05 in / 11.21 in / 13.06 in
Drum Discard at-or-over
10.09 / 11.24 / 13.09
Rotor Max Parallel Variation
0.001 in / 0.0005 in
Multi-step torque procedures OEM · verified
Cylinder Head — tightening sequence 5 stages
1
M11 bolts
22 ft. lbs
2
M11 bolts-90 degrees
90 degrees
3
M11 bolts 1-8
90 degrees
4
M11 bolts 9 and 10
50 degrees
5
22
Cylinder Head — tightening sequence 5 stages
1
M11 bolts
22 ft. lbs
2
M11 bolts-90 degrees
90 degrees
3
M11 bolts 1-8
90 degrees
4
M11 bolts 9 and 10
50 degrees
5
22
Intake Manifold to Engine Bolts — tightening sequence 1 stages
1
7.4
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
1
18.0
Intake Manifold to Engine Bolts — tightening sequence 1 stages
1
7.4
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
1
15.0
Factory maintenance schedule OEM · verified
Normal service, condensed from the factory interval matrix.
Under the factory schedule, replace the engine oil and filter every 7,500 mi; spark plugs every 100,000 mi; coolant at 150,000 mi. The big-interval services (at 150,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.