If you drive a car with an internal combustion engine — basically any modern vehicle that isn't electric — it requires a combination of oxygen and fuel to run. The fuel comes in the form of gasoline ...

All sorts of nasties—lead, mercury, radium, nitrates, norovirus, agricultural runoff, PFAS, and more—can lurk in your water. No surprise, then, that about 40% of U.S. homes filter theirs. But the ...

You probably don't think much about changing your fuel filter unless your car's performance seems a little sluggish. It's not a part of most drivers' maintenance routines, like changing the oil or ...

Air filters help keep your engine clean, and they should be replaced frequently to keep your vehicle running smoothly. The air entering your intake needs to be filtered to prevent dirt and other ...

When I ask friends and family why they don’t drink tap water in LA, they give the same vague answer: It’s chlorinated, gross and probably unhealthy. For years, that explanation sufficed, so I did what ...

U.S. tap water is generally safe and high quality. But that doesn’t mean every glass tastes the same, or that every building’s plumbing delivers identical water to the faucet. That uncertainty has ...

Nearly a year ago, I scribbled “Replace Brita filter” on my to-do list. But the errand perpetually fell by the wayside. There were so many more pressing tasks to complete. “Oh, it’s fine,” I thought. ...

U.S. tap water is generally safe and high quality. But that doesn’t mean every glass tastes the same, or that every building’s plumbing delivers identical water to the faucet. That uncertainty has ...