5 ms·

You're supposed to use both.

• BeetleB 8y ago
  >You're supposed to use both. You're free to use both (I do), but you only need (and are required) to look behind to ensure there isn't a car in the blind spot or just behind it. There's a reason why in many states you need only one side view mirror. In some states, merely having the rear view mirror suffices (i.e. no side view mirrors required).
  • cgriswald 8y ago
    You can reduce your blind spots to smaller than a motorcycle or remove them entirely depending on mirror size: https://www.caranddriver.com/features/a15131074/how-to-adjust-your-mirrors-to-avoid-blind-spots/ https://www.caranddriver.com/features/a15131074/how-to-adjus... I’ve been using this method since before this article. I still look, but there’s never a car when I look.
    • howard941 8y ago
      This, everyone should adjust their mirrors that way and work at getting used to it. But I still look anyway like you do, and like you there was never a surprise car there until a few weeks ago and suddenly there was: A vette going a lot faster than my 75MPH and crossing from one rear quarter to the other then flying ahead as I was preparing to pass the car ahead of me from the center lane. I noticed it only because both eyes over my shoulder caught his flight across the periphery of my gaze.