Perhaps...
Is your smell immediately after starting up, Cold engine or hot engine? or is it driving down the road, or perhaps idling? I have been fighting a fuel smell at times during idle and after a hot soak (drive shut engine off - restart hot engine). I have determined my smell after starting a warm engine is a fuel like smell that smells closer to the engine oil, that has a very distinct fuel smell, even though the vehicle drives 90% highway 25 miles at a given trip. if your honda dealer is helpful and communicates or fixes something please let us all know as my dealer was very quick to tell me know problem found and was very defensive and not helpful. I just replaced the cabin filter with a charcoal activated cabin filter 10 minutes ago.
this directly from the 'Known issues thread'
[ ] Fuel in the engine oil, fuel smell, increased engine oil level. - Solution:
- Pending. Honda is aware of the problem. Honda in China released a statement on Feb 12, 2018 and issued a recall. Report it to your dealer and demand a free oil change until the issue is fixed.