The fuel gauge is fluctuation.
A fluctuating fuel gauge on your Oldsmobile is an indication that the fuel level sensor is failing. When this happens, you will notice that the fuel gauge is moving as you turn corners and the gas sloshes around inside your gas tank. Eventually the fuel level sensor will quit working all together and you will not know exactly how much gas you have in the tank. I would recommend enlisting the assistance of a certified mechanic, like one from YourMechanic, to come by and confirm the concerns with the fuel gauge. They will have the experience and tools needed to drop the fuel tank and replace the sensor so you will always know exactly how much gas you have.
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