You should do well with that Mazda3. It's noted for good fuel economy and overall reliability.
My '15 Mazda3 with the 2.0 liter engine and automatic tranny has proven to offer sports car handling and compact car economy. Since I bought it new, I've averaged 44 mpg mostly commuting on the highways with the air conditioner over the course of 28,000 miles. I use no extreme ecomodding techniques; just smooth and easy application of all the pedals.
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