2008 Saturn Aura Lug Nut Torque & Bolt Specs
The 2008 Saturn Aura lug nut torque is 100 ft-lbs (140 Nm), tightened with a 19mm socket on M12x1.5 studs. Torque in a star pattern in two passes (snug, then final), and re-check after the first 50–100 miles of driving. Use a calibrated torque wrench — not an impact gun — for the final pass.
Lug nut torque: 100 ft-lbs (140 Nm) · Socket size: 19mm · Thread: M12x1.5.
This page is the OEM-referenced fastener summary for the 2008 Saturn Aura. Use it before any maintenance or repair job where torque values matter — brake work, wheel changes, suspension service, engine teardowns, or oil changes. Specs are pulled from manufacturer service literature, cross-checked against community data, and updated as new chassis variants become available.
For the 2008 Saturn Aura, fasteners follow metric standards typical of mid-2000s Saturn engineering. Always confirm spec against the factory service manual before tightening safety-critical fasteners (suspension, brake, steering, head bolts).
Common fastener categories on the 2008 Saturn Aura
- Wheel / lug nut torque and thread spec (covered above)
- Brake caliper bracket bolts (typically 80-130 ft-lbs) and slide/guide pins (18-35 ft-lbs)
- Engine oil drain plug torque — rarely above 30 ft-lbs; always use a new crush washer
- Transmission pan, valve cover, and intake manifold bolts (low torque, often 89-106 in-lbs)
- Suspension control arm, sway bar, tie rod end and ball joint torque
- Spark plug torque (typically 10-15 ft-lbs on aluminum heads — do not exceed)
- Differential cover bolts (RWD/4WD only) and transfer case fasteners
Repair guidance for this model year
For 2008 model-year work: Always use a calibrated torque wrench for safety-critical fasteners, and replace lock washers and crush washers on every reassembly.
Tools you will need
- Metric socket set (8mm-22mm), 6-point impact-rated
- Calibrated torque wrench (10-150 ft-lbs covers most automotive jobs; add a 0-250 ft-lbs wrench for truck lug nuts)
- Breaker bar (24" minimum) for initial loosening
- Penetrating oil (PB Blaster or Kroil) for any fastener over 5 years old
- Anti-seize on stainless or dissimilar-metal threads; thread-locker (Loctite blue) on critical reassembly
Frequently asked questions
What is the lug nut torque on a 2008 Saturn Aura?
The OEM-specified lug-nut torque for the 2008 Saturn Aura is 100 ft-lbs (140 Nm), using a 19mm socket on M12x1.5 thread studs. Use a calibrated torque wrench in a star pattern, in two passes (50% and 100%), and re-check after 50-100 miles of driving.
What socket size do I need for the 2008 Saturn Aura lug nuts?
The 2008 Saturn Aura uses a 19mm socket. A 6-point impact-rated socket is recommended over a 12-point chrome socket — 12-points round off lug nuts under impact-driver use.
Are the 2008 Saturn Aura fasteners metric or SAE?
Metric is the standard for this vehicle. Most fasteners on this vehicle are metric (M6, M8, M10, M12, M14). Bring a full metric set; SAE substitutes can round the head. Bolt-head markings are the fastest way to confirm grade and material at the bench.
Other Saturn Aura years
Same model, different model year — fastener spec may change. Always confirm against the year for your VIN.
→ 2008 Saturn Aura suspension & steering torque specs (control arm, ball joint, tie rod)
All 25 2008 Saturn Aura fastener specs
Per-bolt torque, wrench size, and thread spec for the 2008 Saturn Aura, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both. 24 of the 25 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data.
Wheels — 2008 Saturn Aura
Wheel and lug nut spec for the 2008 Saturn Aura. Lug nut tightens to 100 ft-lbs (140 Nm), takes a 19mm driver, runs on M12x1.5 threads. This figure is independently verified against OEM service data.
Brakes — 2008 Saturn Aura
Brake fasteners on the 2008 Saturn Aura — caliper bracket, slide pins, and banjo bolt torque follow. The brake hose-to-caliper banjo bolt, torqued to 37 ft-lbs (50 Nm). OEM-verified spec. The front brake caliper guide-pin bolt torques to 26 ft-lbs (35 Nm). Confirmed against manufacturer service literature. plan for the right driver; final torque is 96 ft-lbs (130 Nm) (front brake caliper bracket bolt). This figure is independently verified against OEM service data.
Engine — 2008 Saturn Aura
Engine bolt-by-bolt torque for the 2008 Saturn Aura, including the long block, valve covers, and intake. The engine oil drain plug (2.4l) torques to 18 ft-lbs (25 Nm). Confirmed against manufacturer service literature. plan for the right driver; final torque is 15 ft-lbs (20 Nm) (spark plug (2.4l)). This figure is independently verified against OEM service data. Spark plug (3.6l v6) tightens to 13 ft-lbs (18 Nm). OEM-verified spec. The spark plug (3.5l v6), torqued to 11 ft-lbs (15 Nm). Confirmed against manufacturer service literature. The engine oil drain plug (3.5l/3.6l v6) torques to 18 ft-lbs (25 Nm). This figure is independently verified against OEM service data.
Drivetrain — 2008 Saturn Aura
Drivetrain and driveline fasteners for the 2008 Saturn Aura — axle, transmission, and differential plugs. plan for the right driver; final torque is 159 ft-lbs (215 Nm) (front axle/hub nut). This figure is independently verified against OEM service data.
Suspension — 2008 Saturn Aura
Suspension and chassis fastener torque for the 2008 Saturn Aura — strut, control arm, and sway bar values. Rear shock-to-knuckle bolt tightens to 133 ft-lbs (180 Nm). OEM-verified spec. The front sway bar clamp bolts, torqued to 18 ft-lbs (25 Nm). Confirmed against manufacturer service literature. The rear sway bar link bolt torques to 41 ft-lbs (55 Nm). This figure is independently verified against OEM service data. plan for the right driver; final torque is 89 ft-lbs (120 Nm) (strut-to-knuckle bolts). OEM-verified spec. Front sway bar link nut tightens to 48 ft-lbs (65 Nm). Confirmed against manufacturer service literature. The rear trailing arm-to-knuckle bolts, torqued to 133 ft-lbs (180 Nm). This figure is independently verified against OEM service data. The rear wheel bearing/hub bolts torques to 47 ft-lbs (63 Nm). OEM-verified spec. plan for the right driver; final torque is 18 ft-lbs (25 Nm) (strut mount-to-body nuts). Confirmed against manufacturer service literature. Lower control arm bushing-to-frame bolts tightens to 37 ft-lbs (50 Nm) + 90 deg. This figure is independently verified against OEM service data. The strut shaft nut, torqued to 52 ft-lbs (70 Nm). OEM-verified spec. The rear upper control arm-to-knuckle bolt torques to 81 ft-lbs (110 Nm) + 70 deg. Confirmed against manufacturer service literature. plan for the right driver; final torque is 37 ft-lbs then reverse 3/4 turn then 37 ft-lbs + 30 deg (50 Nm) (lower ball joint-to-knuckle nut). This figure is independently verified against OEM service data. Rear lower control arm-to-knuckle bolt tightens to 44 ft-lbs (60 Nm) + 70 deg. OEM-verified spec. The front wheel hub/bearing bolts, torqued to 85 ft-lbs (115 Nm). Confirmed against manufacturer service literature.
Steering — 2008 Saturn Aura
Steering linkage fasteners on the 2008 Saturn Aura. The outer tie rod end nut, torqued to 15 ft-lbs (20 Nm) + 180 deg.
New to torquing wheels? Read our How lug nut torque works — the complete guide for star-pattern sequence, re-torque intervals, and how to read a lug spec — then use the 2008 Saturn Aura numbers above.
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