• Question: In a petrol engine , the fuel explodes to move the pistons, but how does it explode? Also, in a diesel engine , how does it compare to a petrol engine?

    Asked by jamesat79 to Christina on 21 Jun 2013.
    • Photo: Christina Pagel

      Christina Pagel answered on 21 Jun 2013:

      Hi James,

      I think you should ask Colin that question since he works with cars all day! He’ll give you a much better answer than me!

Comments

  • Photo: Steve

    Steve commented on :

    Colin could answer better than me, but I think what happens is after the air and petrol mix gets sucked into the chamber next to the piston, the spark plug then makes a small electric charge and this is what ignites the petrol.