1991 Buick Roadmaster Tire Size & Pressure
The 1991 Buick Roadmaster takes P225/75R15 tires, per the factory service manual.
Factory-Spec Tire Size
P225/75R15
4L60/MD8
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | P225/75R15 | Door Placard | — | — |
700R4/MD8
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | P225/75R15 | Door Placard | — | — |
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More Roadmaster Specs & Repair Guides
1991 Buick Roadmaster Factory Service Manual1991 Buick Roadmaster Oil Type & CapacityPowered by factory manual data from our partner sites AllOEMManuals.com & WhatTypeOfOil.com.
Frequently Asked Questions
What size tires does a 1991 Buick Roadmaster take?
The 1991 Buick Roadmaster takes P225/75R15 tires, per the factory service manual.
What is the tire pressure for a 1991 Buick Roadmaster?
Refer to the tire pressure placard on your vehicle's driver side door jamb for exact cold inflation pressures.
What is the bolt pattern on a 1991 Buick Roadmaster?
Bolt pattern data is available in the factory service manual.