1991 Cadillac Seville tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x115 on every 1991 trim.

Tires for the 1991 Cadillac Seville

Sizes most trims come with first. Open your trim below for its exact size.

205/70R15 Best-rated standard on 1 trim

Check price on Amazon · 205/70R15
215/65R15 Best-rated optional on 1 trim

Check price on Amazon · 215/65R15
215/60R16 Best-rated optional on 1 trim

Check price on Amazon · 215/60R16

Also listed: 225/55R17

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Trims sold in 1991: 1
Generation: K-body III
Other years: 1987
1988
1989
1990
1991
1992
1993
1994
All years (1975–2004)

1 trim sold in 1991

Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

Cadillac Seville K-body III

1986–1991 1 trim

Seville 4.9i 200 hp · L26 HT-4900 V8 205/70R15 99S 4 fitments

Generation: K-body III · 1986–1991
Power: 200 hp
Engine: L26 HT-4900 V8, Petrol
Center bore: 70.3 mm
Bolt pattern: 5x115
Thread: M12 x 1.5

Check price on Amazon · 205/70R15 Wheels 15x6 ET45 · 5x115 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
205/70R15 99S	Rim 15x6 ET45 ~~5x115~~	32 psi
215/65R15 99S	Rim 15x6.5 ET45 ~~5x115~~	32 psi
215/60R16 99S	Rim 16x6.5 ET45 ~~5x115~~	32 psi
225/55R17 99S	Rim 17x7 ET40 ~~5x115~~	32 psi

How to read 99S: 99 is the load index (up to 1,709 lb / 775 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET45 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

What these columns mean

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.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.