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If you run the car in cold weather, the fuel mixture is richened to warm engine, excess fuel not burned can get into the oil. Also, if you have a car that starts hard-long cranking or has a misfire; the excess gas that is not burned will get into your oil.
AnswerYour engine has been severely flooded or, if your car has a carburetor, the float needle seat is shot. Whenever your oil smells like gasoline it's very bad for your engine. Change the oil ASAP. Answeryour engine maybe tired. you have what is called blow-by. your piston rings are not sealing on the cylinder wall. If you watch you may be using oil also. AnswerI would add the following thoughts for consideration.Many things can cause this, some are, from a short driving cycle that doesn't allow the engine to fully warm up, to a faulty fuel pressure regulator, to leaking fuel injector/s or a carburetor float bowl being overfilled, to worn engine parts, like piston rings, valve guides, faulty spark plugs resulting in poor fuel burn ect, ect.
Basically it's gasoline getting from the top of the engine, into the bottom of the engine, where the oil sump is.
Gasoline in the oil isn't good for it, or the engine, as it dilutes the oil & robs it of it's lubricating properties, resulting in accelerated engine wear & bad engine deposits.
Best to change the oil & filter right away, review all the listed ideas & have the most likely checked out by a pro you trust.
If your cars mechanical condition is ok, but your driving cycle is short, after changing the oil & filter, try changing your driving cycle, or by taking your car on a weekly 20 mile interstate round trip, to warm the engine & oil up competely, to evaporate condensation & any gasoline that's found it's way into the crankcase oil sump.
Your ride will love you for it & the gas oder in the oil, will likely take a hike!!!!
your car is not good mechanically or u would not be getting fuel in oil. take it to a REPUTABLE mechanic and get it looked at .problem may be small and easy to fix. the longer you wait the worse it will get
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Why does oil smell like gas?
Only one reason. Gasoline is mixed with the oil.
How do you get the smell of gasoline out of boots?
a lot of mink oil or boot oil
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The only thing that will cause this is gasoline is mixing with the oil. Have to looked at by a professional immediately. This will cause severe engine wear if ignored.
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Gasoline contains benzene,C6H6, which naturally forms in crude oil, and is furthur refined in gasoline used by our cars. It has a characteristic sweet smell. It is also a known carcinogen.
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Not knowing what vehicle and engine you have you may have a faulty fuel pump leaking gasoline into the engine crankcase.
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Knowing what year, make and model you have would help but, excess gasoline is getting into the engine oil, could be from a faulty fuel injector, fuel pressure regulator or in the older vehicles, a flooding carburetor or faulty fuel pump.
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