Fluid capacities, tune-up values and fuel economy at a glance.
Engine oil capacity6.0 qtOEM · verified
Engine oil type5W-30 / 0W-30OEM · 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 12690386. 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 sizeLT245/75R16EOEM · verified
Wheel / rimNS inOEM · verified
OE service part numbers OEM · verified
Engine oil filter
12690386 alt 24585238
Engine air filter
84373974
Fuel filter
84428486
Spark plug
12680072
Battery
88866305 alt 88866306
Front wiper blades
15214346
Serpentine belt
19210691 alt 12637202
Thermostat
89018168 alt 12587397
Service quick specs OEM factory data
Capacities, torques and tune-up values from the factory service manual.
This engine holds 6.0 qt of 5W-30 / 0W-30 engine oil, Synthetic · 75W-90 · GL-5 in the differential, DOT 3 brake fluid. The firing order is 1-2-7-8-4-5-6-3. 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.
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
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
Main Bearings — tightening sequence 2 stages
1
36.0 ft. lbs.
36 ft. lbs
2
90.0
Main Bearings — tightening sequence 2 stages
Prep Inner bolts
1
15.0 ft. lbs.
15 ft. lbs
2
80 degrees; Outer bolts
80 degrees
1
15.0 ft. lbs.
15 ft. lbs
2
51.0 degrees; Side bolts
51 degrees
1
18.0 ft. lbs.
18 ft. lbs
Main Bearings — tightening sequence 2 stages
Prep Inner bolts
1
15.0 ft. lbs.
15 ft. lbs
2
80 degrees; Outer bolts
80 degrees
1
15.0 ft. lbs.
15 ft. lbs
2
51.0 degrees; Side bolts
51 degrees
1
18.0 ft. lbs.
18 ft. lbs
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 97,500 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.
At 6,000 mi
Wheel Hub Nut (torque)
Every 7,500 mi
Accelerator Pedal (inspect) · Body Latches, Locks & Hinges (lubricate) · Brake Shift Interlock Solenoid (inspect) · Brake System (inspect) · Engine Air Filter Element (inspect) · Engine Oil (inspect fluid level)
Every 30,000 mi
Fuel Filter (replace)
Every 45,000 mi
Fuel Evaporative Emission Control System (inspect)
6.0 qt of 5W-30 meeting GM Dexos 1 specification or equivalent. Where temperatures fall below -20 degreesF, GM recommends using 0W-30 oil meeting GM Dexos 1 specification., per the factory manual.