2008 Cadillac STS Tire Size & Pressure
The 2008 Cadillac STS tire size depends on trim: the Base, 3.6 V, AWD takes P235/50ZR18 97W; the Base, 3.6 V, RWD takes P235/50ZR18 97W; the Base, 4.6 A, AWD takes P235/50ZR18 97W; the Base, 4.6 A, RWD takes P235/50ZR18 97W; the V takes P255/45R18 99Y, per the factory service manual.
- Base, 3.6 V, AWD: P235/50ZR18 97W
- Base, 3.6 V, RWD: P235/50ZR18 97W
- Base, 4.6 A, AWD: P235/50ZR18 97W
- Base, 4.6 A, RWD: P235/50ZR18 97W
- V: P255/45R18 99Y
Base, 3.6 V, AWD
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | P235/50ZR18 97W | Door Placard | — | — |
| All | P255/45ZR18 99W | Door Placard | — | — |
| All | P235/50R17 95S | Door Placard | — | — |
| All | P235/50R17 95S | Door Placard | — | — |
Base, 3.6 V, RWD
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | P235/50ZR18 97W | Door Placard | — | — |
| All | P255/45ZR18 99W | Door Placard | — | — |
| All | P235/50R17 95V | Door Placard | — | — |
| All | P235/50ZR18 97W | Door Placard | — | — |
| All | P255/45ZR18 99W | Door Placard | — | — |
| All | 255/45ZR18 99Y | Door Placard | — | — |
| All | P235/50R17 95V | Door Placard | — | — |
Base, 4.6 A, AWD
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | P235/50ZR18 97W | Door Placard | — | — |
| All | P255/45ZR18 99W | Door Placard | — | — |
| All | 255/45ZR18 99Y | Door Placard | — | — |
| All | P235/50ZR18 97W | Door Placard | — | — |
| All | P255/45ZR18 99W | Door Placard | — | — |
Base, 4.6 A, RWD
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | P235/50ZR18 97W | Door Placard | — | — |
| All | P255/45ZR18 99W | Door Placard | — | — |
| All | P235/50R17 95S | Door Placard | — | — |
| All | P235/50R17 95S | Door Placard | — | — |
| All | 255/45ZR18 99Y | Door Placard | — | — |
| All | P235/50ZR18 97W | Door Placard | — | — |
| All | P255/45ZR18 99W | Door Placard | — | — |
V
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | P255/45R18 99Y | Door Placard | — | — |
| All | P275/40R19 101Y | Door Placard | — | — |
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More STS Specs & Repair Guides
2008 Cadillac STS Factory Service Manual2008 Cadillac STS Oil Type & CapacityPowered by factory manual data from our partner sites AllOEMManuals.com & WhatTypeOfOil.com.
Frequently Asked Questions
What size tires does a 2008 Cadillac STS take?
It depends on the trim: Base, 3.6 V, AWD uses P235/50ZR18 97W; Base, 3.6 V, RWD uses P235/50ZR18 97W; Base, 4.6 A, AWD uses P235/50ZR18 97W; Base, 4.6 A, RWD uses P235/50ZR18 97W; V uses P255/45R18 99Y.
What is the tire pressure for a 2008 Cadillac STS?
Refer to the tire pressure placard on your vehicle's driver side door jamb for exact cold inflation pressures.
What is the bolt pattern on a 2008 Cadillac STS?
Bolt pattern data is available in the factory service manual.