1986 Oldsmobile 98 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x115 on every 1986 trim.

Tires for the 1986 Oldsmobile 98

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

205/75R14 Best-rated standard on 5 trims

Check price on Amazon · 205/75R14
205/70R15 Best-rated optional on 5 trims

Check price on Amazon · 205/70R15
215/65R15 Best-rated optional on 5 trims

Check price on Amazon · 215/65R15

Also listed: 225/60R16

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Trims sold in 1986: 5
Generation: XI
Other years: 1982
1983
1984
1985
1986
1987
1988
1989
All years (1965–1996)

5 trims sold in 1986

Open a trim for its tire and rim sizes, bolt pattern and tire pressure. Trims with the same tires and wheels share a row.

Oldsmobile 98 XI

1985–1990 5 trims

98 3.0 +2 variants 110 hp · 3.0L LK9 V6 205/75SR14 4 fitments

Same tires and wheels on: 3.8

Generation: C-platform · 1985–1990
Power: 110 hp
Engine: 3.0L LK9 V6, Petrol
Center bore: 70.3 mm
Bolt pattern: 5x115
Thread: M12 x 1.5

Check price on Amazon · 205/75R14 Wheels 14x6 ET41 · 5x115 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
205/75SR14	Rim 14x6 ET41 ~~5x115~~	32 psi
205/70SR15	Rim 15x6 ET41 ~~5x115~~	32 psi
215/65HR15	Rim 15x6 ET41 ~~5x115~~	32 psi
225/60HR16	Rim 16x6.5 ET42 ~~5x115~~	32 psi

98 3.8 150 hp · 3.8L LG3 V6 205/75SR14 4 fitments

Generation: C-platform · 1985–1990
Power: 150 hp
Engine: 3.8L LG3 V6, Petrol
Center bore: 70.3 mm
Bolt pattern: 5x115
Thread: 1/2" - 20 UNF

Check price on Amazon · 205/75R14 Wheels 14x6 ET41 · 5x115 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
205/75SR14	Rim 14x6 ET41 ~~5x115~~	32 psi
205/70SR15	Rim 15x6 ET41 ~~5x115~~	32 psi
215/65HR15	Rim 15x6 ET41 ~~5x115~~	32 psi
225/60HR16	Rim 16x6.5 ET42 ~~5x115~~	32 psi

98 4.3 D 84 hp · 4.3L LT7 V6 · Diesel 205/75SR14 4 fitments

Generation: C-platform · 1985–1990
Power: 84 hp
Engine: 4.3L LT7 V6, Diesel
Center bore: 70.3 mm
Bolt pattern: 5x115
Thread: M12 x 1.5

Check price on Amazon · 205/75R14 Wheels 14x6 ET41 · 5x115 · 70.3 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
205/75SR14	Rim 14x6 ET41 ~~5x115~~	32 psi
205/70SR15	Rim 15x6 ET41 ~~5x115~~	32 psi
215/65SR15	Rim 15x6 ET41 ~~5x115~~	32 psi
225/60SR16	Rim 16x6.5 ET42 ~~5x115~~	32 psi

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.

Trims sold in 1986: 5
Generation: XI
Other years: 1982
1983
1984
1985
1986
1987
1988
1989
All years (1965–1996)

Considering a different size?

Compare your current tire size with the one you want: diameter change, ground clearance and speedometer error.

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