How does oil get into gas on a 2004 cavalier
Oil was in my gas...I removed the tube that goes to
the engine and it appeared to be oil. The car will
not start and it back fires as I put my foot on the
gas to start it.
I think your confused, the only way oil can get into the fuel is if someone put it in there through the fuel cap. I think you mean how does gas get into my crankcase or engine oil. On one of these it usually means that you have leaking injectors, you will have to run a bleed down test on the fuel system to see if it holds pressure for the amount of time stated in the shop manual. If they are leaking they will have to be replaced. HTH
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