Thinking about going back to mechanical

That's a definite bummer.
Did you notice the oil thinned out, or the smell, or what alerted you?

Once it fired up and ran for a bit we shut it off, I can't remember why now. I checked the oil level mainly to make sure there was no sign of metal. The oil on the dipstick smelled of gas. The level was also up. When I pulled the pump off the inside of the housing was as clean as could be and also smelled like gas.