Quote:
Originally Posted by Rick Lee
Crazy question here. Does that loose plug mean that cylinder was spraying raw gas past the combustion chamber and thus contaminating your oil? Obviously, an oil change is called for now. But could that old oil have caused some damage?
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I first noticed the noise DIRECTLY after an oil change -- at first, my thinking was, "my god, how did I manage to screw up my car doing a simple oil change?!" But then after thinking about it, I reasoned that, no, the oil change probably had nothing to do with it -- if anything, I probably noticed after the oil change because I don't let the car idle in my garage very often (I usually just get in it and drive, following the recommended warm-up procedure), so I was probably just *hearing* it for the first time as it idled in my echo-y garage.
Again, the oil analysis came back clean, but I don't know if that would cover contamination by gasoline. I would assume that I'm getting brand-new oil out of the visit to the shop, but he didn't mention anything about gasoline contamination...
I didn't smell any fuel when I was listening to the car as it idled, so I don't think that's an issue.