2008 Cadillac STS Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2008 Cadillac STS, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x115 |
|---|---|
| Lug Nut / Bolt Size | N 14x1.50 |
| Center Bore (CB) | 71.6 mm |
| Offset (ET) | 42 |
| Torque Specs | 100 ft-lbs (135 Nm) |
2008 STS — Year-Specific Fitment Context
The 2008 Cadillac STS is in year 4 of 7 using the 5x115 pattern (2005–2011). Wheels from any 2005–2011 Cadillac STS are cross-compatible with the 2008 model.
Cadillac STS Bolt Pattern by Year
The table below shows how the STS's wheel specifications have changed over the years. The 2008 model year is highlighted.
5x115 Pattern Context
This bolt pattern appears on 498 vehicles in our current database and is considered moderately common.
Examples of other vehicles using 5x115:
Expert Buying Guide for 2008 Cadillac STS
For your 2008 Cadillac STS, the bolt pattern is 5x115 with a center bore of 71.6mm. When selecting aftermarket wheels, ensure they have a larger center bore and use hub-centric rings to prevent vibrations and ensure proper load distribution. The factory offset is 42mm; staying within ±5mm is recommended to avoid rubbing or clearance issues with suspension and brakes. Always use lug nuts with the correct thread pitch (14x1.50) and seat type (cone or ball seat, depending on the wheel). Mixing seat types can cause wheel loosening. Re-torque lug nuts after 50-100 miles of driving.
Historical Fitment Data Reference
In our dataset, Cadillac STS appears from 2005 to 2011 (7 model years). Across recorded model years, this model generally keeps the same bolt pattern.
- Observed bolt-pattern variants for this model: 1
- Observed center-bore variants for this model: 2
- Observed lug-size variants for this model: 2
- Observed total offset span across years: 0.0 mm
Quick Tips & Safety Warnings
- ✅ Use hub-centric rings if aftermarket wheels have a larger center bore than 71.6mm to prevent vibrations.
- ✅ Stick to offsets between 37mm and 47mm to avoid rubbing on the strut or fender.
- ✅ Re-torque lug nuts to 100 ft-lbs after 50-100 miles of driving to ensure proper seating.
- ⚠️ Torque lugs in a star pattern to 100 ft-lbs (135 Nm), then re-check torque after 50-100 km (30-60 miles).
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2008 Cadillac STS — Frequently Asked Questions
What is the bolt pattern for a 2008 Cadillac STS?
The 2008 Cadillac STS uses a 5x115 bolt pattern (also called lug pattern or PCD). The center bore is 71.6mm and the offset is 42mm.
What other years of Cadillac STS have the same bolt pattern as the 2008?
The Cadillac STS uses the 5x115 pattern from 2005 through 2011. Wheels from any of these model years are dimensionally compatible with the 2008, provided the offset and center bore also match.
How tight should I torque the lug nuts on a 2008 Cadillac STS?
Refer to your owner's manual for exact specs, but always tighten the N 14x1.50 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
What lug nut size does the 2008 Cadillac STS use?
The 2008 Cadillac STS uses N 14x1.50 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
Why is matching the 71.6mm center bore important for the 2008 STS?
The 71.6mm center bore ensures the wheel is perfectly centered on the hub. If the wheel is lug-centric instead of hub-centric, you may experience steering wheel vibration at highway speeds.
What is the factory wheel offset for a 2008 Cadillac STS?
The OEM offset for the 2008 STS is typically around 42mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
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