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If the old oxygen sensor is no longer functioning properly and you replace it with a new one you will certainly save quite a bit of fuel.

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Q: Will a new oxygen sensor increase gas mileage in your 1992 Buick Roadmaster or will this be a waste of money and time?
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Where is the oxygen sensor loacated on a 1993 Buick Roadmaster?

Oxygen SensorOxygen Sensor Location


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