GMC Truck›Acadia 2WD›2008›Overview/gmc-truck/acadia-2wd/2008/base/

2008 GMC Truck Acadia 2WD

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2008 Acadia 2WD.

The 2008 GMC Truck Acadia 2WD takes 5.5 qt of 5W-30 engine oil.

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity5.5 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 48 · 730 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 48 · 730 CCAOEM · verified

Tire sizeP225-45R17OEM · verified

Wheel / rim8.0 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter	12690386
Engine air filter	15278634
Spark plug	12681657
Front wiper blades	25941805 alt 25941804
Serpentine belt	12608660
Thermostat	12689041
Cabin air filter	20958479

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 5.5 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 22.0 ft-lbs. The firing order is 1-2-3-4-5-6.

Lubricants & capacities

Automatic Transmission Fluid	ATF
Automatic Transmission Fluid Capacity	4.2-6.3
Brake Fluid	DOT 3
Differential Gear Oil	SAE 75W · SYNTHETIC
Differential Gear Oil Capacity	1.7 qt
Engine Oil	5W-30 · API
Engine Oil Capacity	5.5 qt

Engine torques

Intake Manifold to Engine Bolts	17 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	18 ft-lbs
Intake Manifold to Engine Bolts	18.0 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	15.0 ft-lbs
Engine Oil Pan Drain Plug	22.0 ft-lbs
Engine Valve Cover Bolts	6.0 ft-lbs

Chassis torques

Lug Nuts	140 ft-lbs
Transfer Case Fill Plug	29.0 ft-lbs
Transfer Case Drain Plug	29.0 ft-lbs
Front Wheel Hub	173 ft-lbs
Rear Wheel Hub	151 ft-lbs

Ignition

Cylinder Firing Order	1-2-3-4-5-6
Cylinder Firing Order	1-2-3-4-5-6
Spark Plug Manufacturer	AC Delco
Spark Plug Gap	0.043 in
Spark Plug Torque	13.0 ft-lbs

Battery & A/C

Refrigerant	R134a
Refrigerant Capacity	2.30 lbs
Oil Group	PAG
Oil Type	46
Oil Capacity	6.50 oz
Standard BCI Group Number	48
Standard BCI Cranking Performance	730 cca

Service checks

Pressure Test	15 psi
Radiator Cap Pressure Relief	15 psi
Thermostat Opening Temperature	194-225 °F
Key ON Engine OFF (KOEO)	55-60
Injector Primary Resistance	11-14 @ 50-90 degreesF ohms
Engine Compression	140 Minimum psi
Engine Compression	140
Intake Valve Lash	Hydraulic in

Brakes

Torque Caliper to Bracket	47.
Torque to Knuckle	129 ft-lbs / 151 ft-lbs
Minimum Pad Thickness	Front: 0.030; Rear: 0.030 specification
Rotor Max Parallel Variation	0.001 in
Rotor Runout Limit	0.002 in
Rotor Nominal Thickness From	1.142 in / 0.787 in
Rotor Nominal Thickness To	1.142 in / 0.787 in
Rotor Discard at or Under	1.083 in / 0.724 in

Multi-step torque procedures OEM · verified

Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages

74 ft. lbs., step 2: 100 ft. lbs., step 3: 150

74 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the 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.

Every 25,000 mi	Exhaust System (Complete) (inspect) · Fuel System (inspect)
Every 50,000 mi	Engine Air Filter Element (replace)
Every 100,000 mi	Spark Plugs (replace) · Transmission Assembly (drain & refill)
At 150,000 mi	Accessory Drive Belt (inspect) · Engine Coolant System (drain, flush & refill)