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    Suggest why cars filled illegally with fuel intended for tractors might emit harmful black fumes from the exhaust? (3 marks)

    I'm somewhat confused for what I'm really meant to write.

    - Contains more Sulfur / impurities
    - Catalytic convertor present in car would not work in correct manor (not catalyzed into other less harmful products)
    - More Greenhouse gases created due to the impurities present
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    (Original post by Coerce)
    Suggest why cars filled illegally with fuel intended for tractors might emit harmful black fumes from the exhaust? (3 marks)

    I'm somewhat confused for what I'm really meant to write.

    - Contains more Sulfur / impurities
    - Catalytic convertor present in car would not work in correct manor (not catalyzed into other less harmful products)
    - More Greenhouse gases created due to the impurities present
    Well, I've had a look.

    Black fumes suggest incomplete combustion and release of microparticulates.

    I imagine that tractor fuel is similar to diesel and contains longer chain hydrocarbons unsuitable for car engines, which cannot burn them efficiently.

    Check out a few links: http://www.tractordata.com/articles/...cal/fuels.html
 
 
 
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