Gas in my oil?

What is your question?

I was checking my oil & thought I got a faint whiff of gas, smelled the paper towel I wiped the dipstick with and sure enough..smelled a little like gas..not real strong.Can anyone tell me what this might mean? It runs fine and is not smoking or anything.The oil is not dirty...still the same color it comes out of the bottle..it's not real thin either. Any advise? Thanks!