2003 Oldsmobile Aurora V8
The 2003 Oldsmobile Aurora V8 tire size and wheel specifications below reflect standard OEM reference fitment data for this trim level.
Detailed tire and wheel breakdown for the 2003 Oldsmobile Aurora
Tire geometry â 235/55R17
The 235/55R17 fitted to the 2003 Oldsmobile Aurora has a section width of 235mm and an aspect ratio of 55%, mounted on a 17-inch rim. That gives a sidewall height of 129.3mm (5.09") and an overall outside diameter of 690.3mm (27.18"). At highway speed this tire completes roughly 461 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 2003 Oldsmobile Aurora while keeping the speedometer accurate, target a 245/48R18 (plus-one). For a softer ride or winter setup, a 225/63R16 (minus-one) keeps the overall diameter within Âą3% of stock, which is the industry tolerance for ABS and stability control to stay calibrated.
Wheel fitment specs
The 2003 Oldsmobile Aurora uses a 5x115 bolt pattern with a 70.3mm hub bore. Safe rim width range for the OEM tire is 7.0J â 8.0J, and offsets in the ET37 â ET47 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2003 Oldsmobile Aurora is printed on the driver-side door jamb sticker â always defer to that value, not to the maximum pressure printed on the tire sidewall. Check pressure monthly and before long trips; under-inflation by 20% can reduce tread life by 25%.
Fitment Specifications
| Engine & Trim | Tire Size | Rim Size | Offset (ET) |
|---|---|---|---|
| V8 | 235/55R17 | 17" x 7.5 | ET42 |
Frequently Asked Questions
What tire size does the 2003 Oldsmobile Aurora V8 use?
The 2003 Oldsmobile Aurora V8 uses 235/55R17 tires as standard equipment.
What is the bolt pattern of the 2003 Oldsmobile Aurora V8?
The 2003 Oldsmobile Aurora V8 has a 5x115 bolt pattern with a center bore of 70.3mm.
What is the wheel offset of the 2003 Oldsmobile Aurora V8?
The 2003 Oldsmobile Aurora V8 has a wheel offset of ETET42.