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how to differentiate between engine oil smoke and smoke caused by rich engine?

in petrol car engine how do you differentiate between smoke caused by burning engine oil and smoke of rich-running engine.

i have a lot of black soot deposit and white heavy smoke out of tail pipe.

is it engine oil or petrol residue?

4 個解答

相關度
  • 6 年前

    Black-ish smoke is too much fuel. Blue-ish smoke is oil burning. And white smoke is water/antifreeze. If the white smoke is for just a bit, after starting it up, that's ok. Especially if it's cold outside. But if it's there all the time, there's a leak, and it needs to be addressed.

  • ?
    Lv 7
    6 年前

    As correctly stated burning oil tends to have a blue 'tinge'. The smell is also a giveaway. Oil tends to have a heavy toxic smell. A rich engine exhaust often smells of 'petrol'.

  • 6 年前

    engine oil smoke is bluish , rich running is black white smoke is coolant or just condensation if it's the first few minutes on a cold engine

  • 6 年前

    White is not smoke, it is steam from a dead head-gasket. Sounds like your motor is in need of serious help Bro!

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