The thermosthat housing is located almost directly on top of the engine. If you are standing in front of the engine, just look for the house (the top house)coming from the radiator. Once you do this, and follow the house to the top of the engine, the hose will connect to the engine with a metal housing, and usually two bolts. This part is the thermosthat housing, wich contains the thermosthat as well.
Follow the top radiator hose to the engine and find a bulborous part device the hose is attached to. The thermostat is inside there.
Inside the fuel tank.
Word the question properly. What is an Oldsmobile Royale?
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under the coil packs which are located at the rear of the motor on top
Mounted on top and inside the fuel tank.
check the fuse box panel
Most GMs of that vintage with a power trunk release is located in the glovebox
In almost every engine, the oil pan is located at the very bottom of the engine.
on the block between the oil pan and trans pan
The correct tire size for a convertible 1972 Oldsmobile Delta 88 Royale is 225/75 R15.
The 1989 Oldsmobile Regency fuse box is located beneath the drivers side dashboard. The fuse box will be near the emergency brake release.