What would cause gas to get into my oil..... 2003 Evo 8 motor

 

When a fuel injector is stuck open, the fuel will flood out. Gasoline will definitely get into the oil when this is the case.
or
Any time you realize that too much gas is getting into your engine oil, you should replace the piston rings and then replace the oil. See if this helps the problem, and if it does not, then investigate the many other possibilities as to why the fuel is leaking into the oil

Read more : http://www.ehow.com/how-does_5003081...ngine-oil.html

Read more : http://www.ehow.com/how-does_5003081...ngine-oil.html

 

My guess is worn down cylinder-wall-to-ring gap.

 

motor was just rebuilt less the 100 miles on it

 

Is it still stock bore?

 

no .30 over

 

If there is no issue with Piston wall, newly seated rings I can't think of anything else.
Is the car driving/boost fine otherwise? How wide is piston-to-wall clearance?

 

car runs great, was in the body shop for a year, its a Evo 8 motor in my 1987 Porsche 911

 

Bad piston rings or you have a leaky injector. I would check injectors first.

 

With only 100 miles on it, the rings aren't worn in yet. Do a compression test. If the numbers are low, but even, either it needs more time to break in or your piston to wall clearance is too large. If only one is low, you have a more serious problem.

 

This is what it looked like with a very strong gas smell...

 

From the pictures it looks like water is getting in to me.

 

I'm with you, that looks like water. When I've smelled "gassy" oil it was a little thinner, but completely mixed and normal color. Unlike water that gives the milkshake & white streaks

 

Ok so I pulled the plugs out and the were black and wet with gas, all 4 were the same. I did a compression test and all four were in the 160 range. Fri I will do a leak down test.