Hey,
@Cpjensen , this thread is from 2017, so you may not get many responses. GDI engines have been doing this for years, with no discernible issues.
My experience with dealing with it the past 5 years on a purchased-new 2017 Honda CR-V with the 1.5T is that it's extremely worrying to the layman mechanic, but the engineers in both the engine department and the lubrication industry have colluded to somehow make them reliable. Our CR-V oil literally constantly smelled strongly of gasoline, and when we'd change it, it would be thinner than the consistency of water between the 0W-20 oil and the amount of gas in the oil. Somehow, there has not been a significant failure rate due to oiling issues with any of these engines, as they're shared by several cars across the Honda lineup, and after losing a ton of sleep over it, griping to Honda of America, changing the oil ad nauseum... the car is still faultless at 65,000 miles. No lifter noise, no signs of issues in any of the oil analysis tests we paid for... It's honestly apparently nothing to worry about anymore. The lubrication engineers account for the extra gas and somehow it just works.
The only situation in which you should worry about this, and when you may experience oil growth, is under extremely short trip service, in which the engine doesn't get to temperature and allow for evaporation of the fuel building up in the oil.
My FFS's oil smells wayyyyy less like gas than the CR-V's did, so i'm hardly worried about it. I just change the oil with full synthetic every 5000m to keep the additives in the oil fresh and ready to do their job.
Good luck with your research, but even after months of digging, I don't see many engines that failed as a direct result of oiling issues caused by just gas in the oil. It's always a lack of maintenance, low oil pressure/starvation, or some defect from the manufacturing process.
Don't lose sleep over it like I did. This is one of those thing that seems REALLY bad to a person who understands engines, but it's just an expected result of our aggressive pursuit to save fuel, and the nerds did their jobs and made it work somehow.
Love that color by the way. Nice car man!