Your car engine doesn't like to breathe through a pillow any more than you would. It needs oxygen just as badly as you need air during a sprint. But the thing is, your car's engine doesn't just inhale ...

If you drive a car with an internal combustion engine, which is most modern vehicles that run on fossil fuels, then your engine requires a precise combination of fuel and oxygen to function properly.

So, you think you’re doing your engine a solid by swapping out that old air […] ...

Something to bear in mind, next time you see a used German luxury sports sedan with a too-good-to-be-true price tag.