2012 Buick Regal tire and wheel sizes, bolt pattern and tire pressure

Check the tables below for every tire size, wheel size, bolt pattern (PCD), rim offset and tire pressure fitted to the 2012 Buick Regal.

2012 Buick Regal tire sizes

225/55R17 235/50R18 245/45R18 245/40R19 255/35R20 235/50R17

Bolt patterns

5x115

5x120

Other years

2008 2009 2010 2011 2012 2013 2014 2015 All 1987–2026

Fitment tables

6 trims sold in 2012

Open a trim for its factory package and every alternative size, front and rear.

Buick Regal V

2009 – 2013 6 trims

Regal 1.6T

177 hp · I4 225/55 R17 1 fitment

GenerationV 2009–2013

MarketChina

Power177 hp

EngineI4, Petrol

Center bore70.3 mm

PCD5x115

ThreadM14 x 1.5

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
225/55 R17	17x7 ET42 ~~5x115~~	–	Tires Rims

Regal 2.0i

145 hp · I4 225/55 R17 1 fitment

GenerationV 2009–2013

MarketChina

Power145 hp

EngineI4, Petrol

Center bore70.3 mm

PCD5x115

ThreadM14 x 1.5

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
225/55 R17	17x7 ET42 ~~5x115~~	–	Tires Rims

Regal 2.0T

220 hp · 2.0L I4 235/50 R18 3 fitments

GenerationV 2009–2013

MarketUSA

Power220 hp

Engine2.0L I4, Petrol

Center bore66.9 mm

PCD5x120

ThreadM14 x 1.5

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
235/50 R18	18x8 ET42 ~~5x120~~	–	Tires Rims
245/40 R19	19x8.5 ET45 ~~5x120~~	–	Tires Rims
255/35 R20	20x8.5 ET47 ~~5x120~~	–	Tires Rims

Regal 2.0T

217 hp · I4 245/45 R18 1 fitment

GenerationV 2009–2013

MarketChina

Power217 hp

EngineI4, Petrol

Center bore70.3 mm

PCD5x115

ThreadM14 x 1.5

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
245/45 R18	18x8 ET42 ~~5x115~~	–	Tires Rims

Regal 2.4i

182 hp · I4 235/50 R17 4 fitments

GenerationV 2009–2013

MarketUSA

Power182 hp

EngineI4, Petrol

Center bore66.9 mm

PCD5x120

ThreadM14 x 1.5

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
235/50 R17	17x7 ET41 ~~5x120~~	–	Tires Rims
235/50 R18	18x8 ET42 ~~5x120~~	–	Tires Rims
245/40 R19	19x8.5 ET45 ~~5x120~~	–	Tires Rims
255/35 R20	20x8.5 ET47 ~~5x120~~	–	Tires Rims

Regal 2.4i

168 hp · I4 245/45 R18 1 fitment

GenerationV 2009–2013

MarketChina

Power168 hp

EngineI4, Petrol

Center bore70.3 mm

PCD5x115

ThreadM14 x 1.5

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
245/45 R18	18x8 ET42 ~~5x115~~	–	Tires Rims

Reading the table

What these columns mean

OE fitment: The package fitted at the factory for that trim.
Alternative: A size the car accepts without modification — plus-sizing, winter setups or optional wheels.
Rim size: Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD): Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore: Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure: Recommended cold inflation pressure for that axle, in psi.
Staggered: A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.