2008 Cadillac CTS 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 CTS, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x115 |
|---|---|
| Lug Nut / Bolt Size | N 12x1.50 |
| Center Bore (CB) | 70.3 mm |
| Offset (ET) | 46 |
| Torque Specs | 80 ft-lbs (108 Nm) |
2008 CTS — Year-Specific Fitment Context
The 2008 model year is the final year of the Cadillac CTS's 5x115 bolt pattern run (since 2003). Wheels from any 2003–2008 Cadillac CTS are cross-compatible with the 2008 model. Important: starting in 2009, Cadillac switched to 5x120.65 — those wheels will not fit the 2008 model. Across its full production run (2003–2019), the CTS has also used: 5x120.65.
Cadillac CTS Bolt Pattern by Year
The table below shows how the CTS's wheel specifications have changed over the years. The 2008 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 2003 | 5x115 | 70.3 | 46 |
| 2004 | 5x115 | 70.3 | 46 |
| 2005 | 5x115 | 70.3 | 46 |
| 2006 | 5x115 | 70.3 | 46 |
| 2007 | 5x115 | 70.3 | 46 |
| ▸ 2008 | 5x115 | 70.3 | 46 |
| 2009 | 5x120.65 | 67.1 | 50 |
| 2010 | 5x120.65 | 67.1 | 50 |
| 2011 | 5x120.65 | 67.1 | 50 |
| 2012 | 5x120.65 | 67.1 | 50 |
| 2013 | 5x120.65 | 67.1 | 50 |
| 2014 | 5x120.65 | 67.1 | 50 |
| 2015 | 5x120.65 | 67.1 | 32 |
| 2016 | 5x120.65 | 67.1 | 32 |
| 2017 | 5x120.65 | 67.1 | 32 |
| 2018 | 5x120.65 | 67.1 | 24 |
| 2019 | 5x120.65 | 67.1 | 24 |
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 CTS
For your 2008 Cadillac CTS, the bolt pattern is 5x115 with a 70.3mm center bore. When selecting aftermarket wheels, ensure the center bore matches or use hub-centric rings to prevent vibrations. The factory offset is 46mm; staying within ±5mm is recommended to avoid rubbing or clearance issues. Lug nuts are 12x1.50 with a conical (60-degree) seat. Never use ball-seat lug nuts, as they can cause wheel loosening. Always torque to 100 ft-lbs in a star pattern. Note: 2009+ CTS wheels (5x120.65) will not fit without adapters.
Historical Fitment Data Reference
In our dataset, Cadillac CTS appears from 2003 to 2019 (17 model years). Across model years, this model appears with 2 bolt patterns (5x115, 5x120.65).
- Observed bolt-pattern variants for this model: 2
- Observed center-bore variants for this model: 2
- Observed lug-size variants for this model: 2
- Observed total offset span across years: 26.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to ensure proper seating.
- ✅ Avoid using wheels from 2009+ CTS models (5x120.65) without hub-centric adapters.
- ✅ Check for caliper clearance when using wheels with offset below 41mm or above 51mm.
- ⚠️ Verify thread pitch before installation; M12x1.25 and M12x1.5 are not interchangeable.
- ⚠️ Torque lugs in a star pattern to 80 ft-lbs (108 Nm), then re-check torque after 50-100 km (30-60 miles).
- ⚠️ This model has multiple bolt-pattern records across years. Match wheels to exact year/trim before purchase.
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2008 Cadillac CTS — Frequently Asked Questions
What is the bolt pattern for a 2008 Cadillac CTS?
The 2008 Cadillac CTS uses a 5x115 bolt pattern (also called lug pattern or PCD). The center bore is 70.3mm and the offset is 46mm.
What other years of Cadillac CTS have the same bolt pattern as the 2008?
The Cadillac CTS uses the 5x115 pattern from 2003 through 2008. Wheels from any of these model years are dimensionally compatible with the 2008, provided the offset and center bore also match.
Will 2009 Cadillac CTS wheels fit a 2008 model?
No. The 2009 Cadillac CTS switched to a 5x120.65 bolt pattern, which is not compatible with the 2008 model's 5x115. Using mismatched patterns is unsafe.
What is the PCD for a 2008 Cadillac CTS?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2008 CTS, the PCD is 5x115.
How tight should I torque the lug nuts on a 2008 Cadillac CTS?
Refer to your owner's manual for exact specs, but always tighten the N 12x1.50 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
What does 46mm offset mean for the 2008 CTS?
An offset of 46mm means the wheel's mounting surface is 46mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your Cadillac.
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