2008 Cadillac STS-V Wheel & Tire Sizes
Complete fitment guide for the 2008 Cadillac STS-V: factory tire sizes, compatible wheel diameters, widths and offsets, and the 6x115 bolt pattern — for every trim.
Bolt Pattern
6x115
Centre Bore
70.3 mm
Lug nuts
M12 x 1.5
Torque: 140 Nm
Wheel Diameters
19"–22"
Factory (OEM) Tire Sizes for the 2008 Cadillac STS-V
Front / square fitments
Rear (staggered fitments)
Click any size to shop tires in stock now — free shipping anywhere in Canada, optional installation at our 5 GTA locations.
2008 Cadillac STS-V Wheel Fitment by Trim
Compatible wheel diameter, width and offset ranges for each 2008 Cadillac STS-V configuration. Trims with different front and rear specs run a staggered setup.
4.4i · Saloon
StaggeredV8 · Petrol
| Spec | Front | Rear |
|---|---|---|
| Wheel diameter | 19–22" | 19–22" |
| Wheel width | 8–9" | 9.5–10" |
| Wheel offset | 30–45 mm | 32–56 mm |
| Tire width | 255 mm | 275–285 mm |
2008 Cadillac STS-V Fitment FAQ
What is the bolt pattern on a 2008 Cadillac STS-V?
The 2008 Cadillac STS-V uses a 6x115 bolt pattern (6 lug nuts on a 115 mm circle) with a 70.3 mm centre bore.
What size tires fit a 2008 Cadillac STS-V?
Factory (OEM) tire sizes for the 2008 Cadillac STS-V include 255/45R18, 255/45ZR18, 255/40ZR19; staggered rear fitments use 275/40ZR19, 285/35ZR20. Always confirm against the placard inside the driver's door jamb.
What wheel sizes can I put on a 2008 Cadillac STS-V?
Depending on trim, the 2008 Cadillac STS-V accepts wheels from 19" up to 22" in diameter with the correct width and offset — larger diameters typically require lower-profile tires to keep the overall rolling diameter stock.
What lug nut size does a 2008 Cadillac STS-V use?
The 2008 Cadillac STS-V uses M12 x 1.5 lug nuts, torqued to 140 Nm.
Fitment data is provided as a guide. Always verify sizes against your vehicle's door-jamb placard or with our fitment experts before ordering.