I'm having this problem with my 97' Nissan Sentra, the gasoline is leaking into the oil system somehow and I'm not sure how. The car will not crank up without pushing the gas nor will it idle.

Can anyone make suggestions on things to check? There are no codes from the ECU and I've ran a compression test which shows 190psi across the board. Could a leak-down test trace the issue? thanks for any input.

 

I would check for a stuck open injector. It would leak pass the valve to the combustion chamber then through the rings and end up in the oil.

 

Do a leakdown test, that will tell you if you have a blow-by condition. Possibly a fuel injector leak among other things. How did you know that there is gas in the oil?

 

Injector stuck open combined with worn rings can cause this.

 

If you use too high octane and have worn rings, also you should check your o2 sensor readings something could be causing your motor to run excessively rich

 

I drained the oil and was literally amazed... It was a milky white substance which leads me to believe the head gasket is blown. This car was purchased as a fixer upper but it turned out to be a bigger project than I thought.

I assume the gas smell in the oil was from the previous owner flooding it attempting to make it run.

It still will not start with new oil and i'm not getting any trouble codes from the ECU. The car starts and runs if you stay on the gas pedal so any suggestions would be great. I have yet to check the fuel injectors.. I was told to have someone try to crank it while I have a screwdriver pressed against each injector one at a time with my each to the butt of the screwdriver to listen for clicking??