I have an 07 HEMI 5.7L. I've had it for about 4 years. I've noticed that over the past couple tanks of fuel that my mileage has dropped 3 to 4 mpg. My driving habits have not changed. The only thing I've done recently is replace the spark plugs 5 months ago.
Poor Fuel mileage
- Thread starter bbd90
- Start date
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