1994 Oldsmobile Achieva Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 1994 Oldsmobile Achieva, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x100 |
|---|---|
| Lug Nut / Bolt Size | N 12x1.50 |
| Center Bore (CB) | 57.1 mm |
| Offset (ET) | 45 |
| Torque Specs | 80 ft-lbs (108 Nm) |
1994 Achieva — Year-Specific Fitment Context
The 1994 Oldsmobile Achieva is in year 3 of 7 using the 5x100 pattern (1992–1998). Wheels from any 1992–1998 Oldsmobile Achieva are cross-compatible with the 1994 model.
Oldsmobile Achieva Bolt Pattern by Year
The table below shows how the Achieva's wheel specifications have changed over the years. The 1994 model year is highlighted.
5x100 Pattern Context
This bolt pattern appears on 447 vehicles in our current database and is considered moderately common.
Examples of other vehicles using 5x100:
Expert Buying Guide for 1994 Oldsmobile Achieva
For your 1994 Oldsmobile Achieva, the 5x100 bolt pattern and 57.1mm center bore are critical. Aftermarket wheels often have a larger center bore (e.g., 73.1mm), requiring hub-centric rings to prevent vibration and ensure proper load distribution. The factory offset is 45mm; deviations beyond ±5mm may cause rubbing or clearance issues. Always use lug nuts with the correct thread pitch (12x1.50) and seat type—factory wheels use a conical (60-degree) seat. Avoid ball-seat lug nuts, as they can loosen. Re-torque after 50-100 miles. Verify brake caliper clearance, especially with wider wheels.
Historical Fitment Data Reference
In our dataset, Oldsmobile Achieva appears from 1992 to 1998 (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: 1
- Observed lug-size variants for this model: 1
- Observed total offset span across years: 0.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 100 ft-lbs after 50-100 miles of driving.
- ✅ If using aftermarket wheels, ensure hub-centric rings are installed to match the 57.1mm center bore.
- ✅ Check for brake caliper clearance when selecting wheels with offset below 40mm or above 50mm.
- ⚠️ 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).
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1994 Oldsmobile Achieva — Frequently Asked Questions
What is the bolt pattern for a 1994 Oldsmobile Achieva?
The 1994 Oldsmobile Achieva uses a 5x100 bolt pattern (also called lug pattern or PCD). The center bore is 57.1mm and the offset is 45mm.
What other years of Oldsmobile Achieva have the same bolt pattern as the 1994?
The Oldsmobile Achieva uses the 5x100 pattern from 1992 through 1998. Wheels from any of these model years are dimensionally compatible with the 1994, provided the offset and center bore also match.
Do 1994 Oldsmobile Achievas use lug bolts or lug nuts?
The 1994 Achieva requires N 12x1.50 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
What is the PCD for a 1994 Oldsmobile Achieva?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 1994 Achieva, the PCD is 5x100.
How tight should I torque the lug nuts on a 1994 Oldsmobile Achieva?
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.
Why is matching the 57.1mm center bore important for the 1994 Achieva?
The 57.1mm 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.
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