all of the components for the top, including a plug in the side of the motor to fill with fluid from are under the back seat area. Refill for fluid is dex trans fluid.
a trans pressure shoul do
Probably because you need to check the engine.
Possibly burning oil. Check compression.
You add fluid at the same place you check it.
The most obvious thing to check when a 1991 Oldsmobile Cutlass Supreme won't start is to make sure that the vehicle has gas. You should also check the battery. If the car clicks when you try to start it, it is likely the alternator.
Check hydraulic fluid level Fill with pistons in retracted position
under spare wheel in the boot
Check your RPO codes. If it has K60 then you have a 100 amp alternator.
Check out FUELECONOMY.GOVIt lets you find the MPG for any car =]
Check on the passenger side firewall may have to remove plastic cover
check your specification decal on the drivers door if it's still on the car.
Most likely brake fluid. Check the master cylinder level.