1998 Buick Regal Owner's Manual - Page 263

Compact Spare Tire Although the compact spare tire fully inflatedwhen was your vehicle was new, it can lose air aftertime. a Check the inflation pressureremhrly. It should be 60 psi (420 Wa). After installingthe compact spare on your vehicle, you should stop as soon as possible and make sureyour spare tire is correctly inflated. The compact is spare made to perform well at speedsup to 65 mph (105 kmk) distancesup to 3,000 miles (5 000 km), for so you can finishyour trip and have your full-size tire repaired or replaced where you want. You must calibrate the tire pressure monitor system after installing or removing the compact spare. See "Tire Pressure Monitor" in the Index. The system not work may is correctly when the compact spare installed on the vehicle. Of course, it's best to replace your spare with a full-size tire as soon as you can. Your spare will last longer andbe in good shape in case need it again. you NOTICE: When the compact spare is installed,don't take your vehicle through an automatic car wash with guide rails.The compact spare can get caught on the rails. That can damage the tire andwheel, and maybe other parts of your vehicle. Don't use your compact spare on other vehicles. And don't mix your compact spare tire or wheel with other wheels or tires.They won't fit. Keep your spare tire and its wheel together. NOTICE: Tire chains won't fit your compact spare. Using them can damage your vehicle and can damage the chains too. Don't usetire chains on your compact spare. 5-37