According to WebMD, swollen ankles commonly occur when a person stands or walks a lot, but if swollen ankles persist or are accompanied by other symptoms, they could be an indication of a serious health problem, such as pregnancy complications, foot or ankle injury, lymphedema and venous insufficiency.
The Chevy Malibu can get between 17 and 22 miles per gallon of gas on the road. It could even get to 26 to 33 miles per galon if you are in a highway.
The average gas mileage for sport utility vehicle (SUV) is about 18  miles per gallon for gas only models. Some hybrids get as high as  35 miles per gallon.