1993 Oldsmobile 88 Owner's Manual - Page 218

Compacf Spare Tire Although the compact spare was fully inflated when your vehicle was new, it can lose air after a time. Check the inflation pressure regularly. It should be 60 psi (420 P a ) . The compact spare is 19. Store the flat tire as far forward in made to go up 3,000 miles (5 000 km), to the trunk as possible. Store the jack so you can finish your and have trip and wheel wrenchin their your full-size tire repairedor replaced compartment in the trunk. where you want. Of course, it's best to replace your spare with a full-size tire as Don't use your compact spare on some soon as youcan. Your spare will last I longer and bein good shapein case you other vehicle. need it again. And don't mix your compact spareor wheel with other wheels tires. They or Your anti-lock brake system warning light may come on when you are driving won't fit. Keep your spare and its wheel with a compact spare. See theIndex together. under Anti-Lock Brake System Warning Light. The compact spare is for temporary use only. Replace the compact spare tire with a full-size tire as soon as you can. See Compact Spare Ere later in this section.