clean my msf and nothing change
My car has 94000 miles.
My car has an automatic transmission.
The fuel mileage range is typically a calculation that your vehicle's computer makes while taking a variety of things into account including your driving habits. Depending on how you drive this can change drastically as you drive. This can also be impacted by other fuel delivery issues as well. I would recommend having an expert mechanic, such as one from Your Mechanic come to your home to diagnose your dropping fuel efficiency.
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