That sucks.....Thats a nice Big FU from HondaSo I finally heard back from American Honda today after opening a case with them on Jan 8. 2019. We have had oil dilution in our 2018 Touring since buying it in April 2018. We are located in central WI. We have had the oil changed 2x within 4,000 miles for oil levels up to inch over the high mark. We also had the "fix" done in early November 2018. The oil is already 1" over the high mark after this fix.
Today Martha told me that American Honda can no longer help me and that the vehicle is operating as designed. It is now up to me to make sure that I take long drives and adequately warm the engine every time I drive. I was advised not to take short trips especially in cold weather. I was also told that the Fix was not a fix that it was an "improvement" and that in summer I should no see oil dilution. She said it is normal for the oil to have gas in the oil. I asked her if a quart of gas in the oil was OK and she said she could not answer that question and that if I had further concerns I should take it back to the dealer and have the oil changed on my dime. I asked if she could put this writing and she said it was Honda America's policy not to put things in writing but I find it interesting that they tape the phone calls.
Honda America doesn't care and will not help you. Long time Honda customers have said they always believed that Honda would do the right thing well I think you can forget about that. Good luck to any of you that develop this issue because you are on your own.