1991 Oldsmobile Silhouette tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x115 on every 1991 trim.

Tires for the 1991 Oldsmobile Silhouette

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

195/75R14 Best-rated standard on 1 trim

Check price on Amazon · 195/75R14
205/70R15 Best-rated optional on 1 trim

Check price on Amazon · 205/70R15

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Trims sold in 1991: 1
Generation: GMT199
Other years: 1989
1990
1991
1992
1993
1994
1995
1996
All years (1989–2004)

1 trim sold in 1991

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

Oldsmobile Silhouette GMT199

1989–1996 1 trim

Silhouette 3.1 119 hp · LG6 V6 195/75R14 97S 2 fitments

Generation: GMT199 · 1989–1996
Power: 119 hp
Engine: LG6 V6, Petrol
Center bore: 70.3 mm
Bolt pattern: 5x115
Thread: M12 x 1.5

Check price on Amazon · 195/75R14 Wheels 14x5.5 ET39.5 · 5x115 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
195/75R14 97S	Rim 14x5.5 ET39.5 5x115	33 psi
205/70R15 97S	Rim 15x6 ET42 5x115	33 psi

How to read 97S: 97 is the load index (up to 1,609 lb / 730 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET39.5 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.