4 responses to “Friendly reminder”

1. 

   Carforcars

   15 years Ago

   This is interesting, it must be difficult to calculate that unless it is on a controlled environment. I wonder how they use the same conditions to check, I will just have to accept that they did check.

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2. 

   Kim

   15 years Ago

   Mythbusters did an episode to test whether it’s more fuel efficient to use your air conditioning or have your windows down. They found that if you are driving under 80km/h then it’s better to have the windows down. If you are going faster than that it’s better to use your aircon.

   http://en.wikipedia.org/wiki/MythBusters_(2005_season)#AC_vs._Windows_Down

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   1. 

      amnon

      15 years Ago

      That may be true, but it doesn’t take into account one’s comfort levels. I’d rather travel at 70km/h with the aircon on and the windows down, use a little more fuel but be much more comfy. The fuel-efficiency/comfort trade-off also needs to made. Windows-down and aircon are not perfect substitutes.

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3. 

   Terry Roe

   15 years Ago

   The fact is that, at speeds below 80kph, wind resistance and wind drag do not have a significant effect on the performance of most vehicles. However, as speeds increase above 80kph, the drag factor becomes a significant contributor to increased fuel consumption; this making the use of the air-conditioner a far more comfortable and cost-worthy option. It also reduces the risk of being punished by angry road-crossing, African, killer-bees. Here I speak from painful, personal experience. Keeping your cool from behind closed doors and windows is always the better option. Either way, the added cost of traveling in cool comfort anywhere in Africa is always a well-worthy investment!

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