my sti started smell when I turn on the heater for past few months.
I changed the radiator(to used oem) twice due to cracks, and replaced the power steering pump. I smell it randomly when I turn on the heater, but when I turn on the a/c, then it smells less.
Also when I open up the hood after I shut off the car, I can smell it from the radiator section and also on the passenger side of the engine. But the smell that comes into the car vent smells like the one from the engine.
And I found out that my engine's eating up some oil lately, and I just filled 1.5qts after I refilled 1qt about 6 weeks ago.
I also replaced the cabin filter last week, and cleaned up the engine bay with simple green (it smelled good after the wash, but that only lasted a day)
I don't see any leakage around the hose or under the car, so what could be a possible problem? it has 103k miles on it right now.