EPA has improved its methods for estimating fuel economy,
but your mileage will still vary.
EPA
tests are designed reflect "typical" driving conditions
and driver behavior, but several factors
can affect MPG significantly:
- How & Where You Drive
- Vehicle Condition & Maintenance
- Fuel Variations
- Vehicle Variations
- Engine Break-In
Therefore, the EPA ratings are a useful tool for comparing the
fuel economies of different vehicles but may not accurately predict
the average MPG you will get.
To find out what you can do to improve the fuel economy of your
car, see Driving More Efficiently
and Keeping Your Car in Shape.
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