Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2005 K-Series Sierra 4WD.
The 2005 GMC Truck K-Series Sierra 4WD takes 4.5 qt of 5W-30 engine oil.
Quick specs
Fluid capacities, tune-up values and fuel economy at a glance.
Engine oil capacity4.5 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 12731175. 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.
Capacities, torques and tune-up values from the factory service manual.
This engine holds 4.5 qt of 5W-30 API engine oil, SAE 75W · Synthetic in the differential, DOT 3 brake fluid. 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.
Intake Manifold to Engine Bolts — tightening sequence 1 stages
1
3.7 ft. lbs., step 2: 7.4
3.7 ft. lbs
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
1
11 ft. lbs., step 2: 18
11 ft. lbs
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
1
11 ft. lbs., Step 2: 22
11 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
1
3.7 ft. lbs., Step 2: 7.4
3.7 ft. lbs
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
1
11 ft. lbs., Step 2: 18
11 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
1
3.7 ft. lbs., Step 2: 7.4
3.7 ft. lbs
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
1
11 ft. lbs., Step 2: 18
11 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
1
3.7 ft. lbs., Step 2: 7.4
3.7 ft. lbs
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
1
11 ft. lbs., Step 2: 18
11 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
1
3.7 ft. lbs., step 2: 5.9 ft. lbs., Step 3: 8.8
3.7 ft. lbs
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
Factory maintenance schedule OEM · verified
Normal service, condensed from the factory interval matrix.
Under the factory schedule, replace the spark plugs every 60,000 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.
Every 7,500 mi
Fuel Line (inspect) · Fuel Tank Filler Cap O-Ring (inspect)
Every 15,000 mi
Fuel Filter (replace) · Fuel Filter Water Separator (drain)
Every 25,000 mi
Clutch Hydraulic System (drain & refill) · Exhaust System (Complete) (inspect) · Fuel System (inspect)
Every 50,000 mi
Engine Air Filter Element (replace) · Fuel Evaporative Emission Control System (inspect) · Transfer Case Assembly (drain & refill) · Transmission Fluid & Filter (replace)