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Sammamish WA: Why is Your 2018 Nissan Kicksâ€™ Gas Mileage Falling?
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(Posted on Mar 17, 2019 at 12:00AM by Robert Bacon)

Dear Robert,

Iâ€™ve recently noticed that my 2018 Nissan Kicksâ€™ gas mileage has decreased for no obvious reason. My friend said it could be due to a problem with its oxygen sensor: what do you think?

Thanks,
Maggie
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Hi, Maggie!

If youâ€™re seeing your 2018 Nissan Kicksâ€™ gas mileage drop inexplicably, it could indeed be due to a problem with your oxygen sensor.

The oxygen sensor is located in your vehicleâ€™s exhaust and reads the percentage of O2 the car is expelling.

The sensor will detect if your engine is running lean or rich and send a message to the carâ€™s ECU to adjust the fuel/oxygen mixture accordingly.

Of course, if the oxygen sensor isn't working properly it may pick up false readings and get your ECU to send an unnecessary amount of fuel to the engine: this would result in your gas mileage dropping.

A faulty oxygen sensor tends to get worse over time and can raise your carâ€™s fuel consumption by up to 20%. This is an issue you should fix now before it costs you more money at the pumps.

My advice is to call down to our Service Department and let the Technicians have a look at your Kicks.

Thanks for the question, Maggie. Contact Kirkland Nissan, Washington again if you need anything else.