2008 Cadillac STS Tire Sizes

Factory original equipment (OE) tire specifications.

Platinum

Front

Tire Size

P235/50ZR18

Load Index

97

Speed Rating

W

Platinum

Rear

Tire Size

P255/45ZR18

Load Index

99

Speed Rating

W

V

Front

Tire Size

P255/45R18

Load Index

99

Speed Rating

Y

V

Rear

Tire Size

P275/40R19

Load Index

101

Speed Rating

Y

V6 (AWD)

Tire Size

P235/50R17

Load Index

95

Speed Rating

S

V6 (RWD)

Tire Size

P235/50R17

Load Index

95

Speed Rating

V

V6 w/Luxury Performance Pkg. (RWD)

Front

Tire Size

P235/50ZR18

Load Index

97

Speed Rating

W

V6 w/Luxury Performance Pkg. (RWD)

Rear

Tire Size

P255/45ZR18

Load Index

99

Speed Rating

W

V6 w/Luxury Performance Pkg. (RWD)(Summer Only)

Tire Size

255/45ZR18

Load Index

99

Speed Rating

Y

V6 w/Luxury Pkg. (AWD)

Tire Size

P235/50R17

Load Index

95

Speed Rating

S

V6 w/Luxury Pkg. (RWD)

Tire Size

P235/50R17

Load Index

95

Speed Rating

V

V8 w/Luxury Performance Pkg. (RWD)

Tire Size

P235/50R17

Load Index

95

Speed Rating

S

V8 w/Luxury Performance Pkg. (RWD)

Front

Tire Size

P235/50ZR18

Load Index

97

Speed Rating

W

V8 w/Luxury Performance Pkg. (RWD)

Rear

Tire Size

P255/45ZR18

Load Index

99

Speed Rating

W

V8 w/Luxury Pkg. (RWD)

Tire Size

P235/50R17

Load Index

95

Speed Rating

S

V8 w/Premium Luxury Performance Pkg.

Front

Tire Size

P235/50ZR18

Load Index

97

Speed Rating

W

V8 w/Premium Luxury Performance Pkg.

Rear

Tire Size

P255/45ZR18

Load Index

99

Speed Rating

W

V8 w/Premium Luxury Performance Pkg. (Summer Only)

Tire Size

255/45ZR18

Load Index

99

Speed Rating

Y