I'm in North Alabama, so not in a "cold region". It's a 2018 EX-L with 6600 miles on it, purchased in late May 2018. Admittedly, I didn't check the oil level for a few months after I bought it because I really didn't think the oil dilution was an issue for me. When I did finally check it in October, it definitely smelled like gas to me but did not appear to be overfilled. Took it to local dealer, they acted like they hadn't heard about oil dilution but agreed to change the oil for free. I've checked the dipstick multiple times since then, it always has the gas smell but the level was within the marks. Checked it again yesterday and now it does seem to be above the max level.