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    Should you use fog lights in heavy snow in Finland?

    Visibility in snowfall and blowing snow.

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    Short answer

    In poor visibility, yes. During one warning of very poor driving conditions, the Finnish Meteorological Institute urged drivers to switch on their fog lights. Blowing snow cuts visibility much like fog does, so a longer safety distance becomes especially important. Fog lights help others see you, but they do not replace slowing down to match the visibility.

    Transport, roads, car rental

    Why

    1. Verkkouutiset reports the Meteorological Institute's advice to use fog lights.
    2. Blowing snow reduces visibility like fog.
    3. A longer safety distance is stressed in such conditions.

    Details

    Rear fog lights are bright. Switch them off when visibility improves so you do not dazzle drivers behind you.

    Tip

    Keep the car's lights and windows clear of snow before and during the drive.

    What may differ

    Rules on when fog lights may be used are set in traffic law. Use them only when visibility really requires.

    Common misconception

    Fog lights are only for fog.

    What actually happens

    The Meteorological Institute has advised using them in snowfall and blowing snow too.

    People also ask

    • Do you need headlights on during the day in Finland?
    • What does a poor driving conditions warning mean in Finland?
    • Which roads get icy first in Finland?

    Sources

    This answer is for reference only. Weather warnings change quickly, so check the Finnish Meteorological Institute and Fintraffic before you set off.

    Transport, roads, car rental

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      VTT Technical Research Centre of Finland tested six used E10-compatible cars from model years 1999–2010 in laboratory conditions in 2011.

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      Finnish pumps sell two main petrol grades: 95E10, with an octane rating of at least 95 and up to 10% ethanol, and 98E5, with at least 98 octane and up to 5% ethanol.

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