It may be about 32 psi. Verify by checking the VIN Sticker on the Driver's front door.
33psi both tire
The right tire pressure for a 1993 Mercury Sable is between 33 and 36 psi. Correct tire pressure will save you in gasoline cost over time.
Either the tire pressures are low or one or more sensors are faulty.
Look in the glove compartment, there should be a sticker with that info. Or look in the owners manual if you have one.
Assuming we're talking TIRE pressure here.... I typically target my tires at 35psi
P205/65r15
P205/65R-15.
The tire size is P215/60R16. 94T M+S
On a 1997 Mercury Sable : The jack is supposed to be with the spare tire in the trunk The spare tire is stored with the tire valve facing down and the jack is stored inside the tire rim
It should be 215-60-R16.
A 1997 Mercury Sable came stock with size p205/65r15 tires. Taller or shorter tires will cause the speedometer to read incorrectly.
According to the drawing in the 2001 Mercury Sable Owner Guide : It shows that the lug wrench is UNDERNEATH the spare tire , in the spare tire well , under the carpet , in the trunk