The future of downtown districts Bloom and Ramani, then a SIEPR research assistant, first measured the donut effect—and introduced the term—in 2021, about a year into the COVID-19 pandemic. In ...

The best place to start is your owner's manual, which should list the exact recommended mileage for the spare tire. If you don't have a manual, 70 miles is the rule of thumb. Temporary, donut ...

These days, only 10% of vehicles come with a full-size spare. Many come with a temporary "donut" tire, while others come with cans of "Fix A Flat" or an air pump. A lot of people out there may ...

"I thought it would be under there, so we opened that up and realized there wasn't a spare tire," she said. There wasn't even a temporary donut tire, just a little air pump. But her father ...