Question of the Week Podcast

Question of the Week episode

Sun, 22nd May 2011

How much Fuel is too much Fuel?

Petrol pumps in a petrol station in Switzerland. (c) Rama @ wikipedia

Does a full fuel tank waste cash?  Is there an optimum level to which you should fill your car's petrol tank so it doesn't just use the excess energy simply to carry the petrol around? Do vehicle manufacturers make the capacity of the petrol tank the perfect size with this in mind?  Plus, passenger jets arrive cold, but spacecraft burn up - when does wind chill give way to frictional heating?

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In this edition of Question of the Week

Full Transcript

  • How much petrol should I put in my car?

    Is there an optimum level to which you should fill your car's petrol tank so it doesn't just use the excess energy simply to carry the petrol around? Do vehicle manufacturers make the capacity of the petrol tank the perfect size with this in mind?   Thanks for the great show  ...

 

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