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2015 Cadillac XTS 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 2015 Cadillac XTS.

Fitment tables

2 trims sold in 2015

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

Cadillac XTS GM Epsilon II

2013 – 2017 USA market 2 trims

XTS 3.6i

300 hp · 3.6L LFX V6 235/55 R18 104H 5 fitments
GenerationGM Epsilon II 2013–2017
Power300 hp
Engine3.6L LFX V6, Petrol
Center bore66.9 mm
PCD5x120
ThreadM14 x 1.5
Tire sizeRim size and bolt patternPressure, psiPrices
235/55 R18 104H18x8 ET39 5x12033TiresRims
245/45 R19 98V19x8.5 ET39 5x12035TiresRims
255/45 R19 100V19x8.5 ET39 5x12035TiresRims
245/40 R20 95V20x8.5 ET39 5x12035TiresRims
255/40 ZR20 97W20x9 ET35 5x12035TiresRims

XTS 3.6T

404 hp · 3.6L LF3 V6 245/45 R19 98V 5 fitments
GenerationGM Epsilon II 2013–2017
Power404 hp
Engine3.6L LF3 V6, Petrol
Center bore66.9 mm
PCD5x120
ThreadM14 x 1.5
Tire sizeRim size and bolt patternPressure, psiPrices
245/45 R19 98V19x8.5 ET39 5x12035TiresRims
245/40 R20 95V20x8.5 ET39 5x12035TiresRims
255/40 ZR20 97W20x8.5 ET35 5x12035TiresRims
255/35 ZR21 96Y21x8.5 ET35 5x12036TiresRims
255/30 ZR22 95Y22x9 ET32 5x12036TiresRims
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.

Considering a different size?

Run your OE size against the one you want to see diameter change, ground clearance and speedometer error.