1994 Buick Roadmaster Owner's Manual - Page 259

When to Check Tire Inspection and Rotation Check your tires once a month or more. Also, check the To make your tires last longer, have them inspected and tire pressure of the spare tire. rotated at the mileages recommended the in Maintenance Schedule. See "Scheduled Maintenance If you have a compact spare tire, it should be at 60 psi Services" in the Index. (420 kPa). How to Check Use a good quality pocket-type gage to check tire pressure. Simply looking at the tires will not tell you the -pressure, especiallyif you have radial tires which may look properly inflated even if they're underinflated. If your tires have valve caps, sure to put them back be on. They help prevent leaks by keeping out dirt and moisture. FRONT Use this rotation pattern. 257