[Dave92N54]

Originally Posted by Gregrobin

Dave92N54 I love Blackstone Labs for oil samples. I use them all the time when buying boats. The last one showed 5% fuel in the oil. Seller tired to tell me it was normal. I could smell fuel in the exhaust as well under power. I walked away from the sale.

Fuel in the oil can come from valve stems as well.

I appreciate the response. I too like them, they've been very pleasant to work with and tests aren't too expensive. Free kits are nice too, I have a bunch just waiting.

I highly doubt valve seals are my issue. No smoke on startups and almost no oil consumption (I use maybe half a qt in 3000mi). I continue to look for the cause but at this point, I just change the oil frequently. I may go ahead and warranty my index 12s…

The thing that is odd to me is my fuel trims would indicate i'm running a little leaner, not richer. They're not high in either direction but I certainly see positive trims more than negative (I watch my trims any time i'm driving the car).

I feel I may have hijacked the thread a bit, I apologize for that.