Originally Posted By: Danh
Originally Posted By: kjbock
Originally Posted By: Swifty
Just drive the thing, who knows if you will ever have a mechanical issue with the car. Given how new this motor if this becomes a common issue Honda will certainly issue a TSB to correct the issue with the dilution. It does not necessarily mean the car is going to fall apart or blow up. Until there is a real mechanical issue there is no issue. Don't lose to much sleep over it. Go to a thicker oil and change more frequently and you will be fine.
Agreed. I would use a 5W-30/0W-30 synthetic oil and change it about every 6-7,000 miles. Run an occasional UOA to see how the oil looks.
I would think Honda should have accounted for fuel dilution in the design of this engine.
Tough position: going up a viscosity grade may be good for the engine but could also jeopardize the warranty if Honda decided to get persnickety
True, but I doubt you will have any problem with the engine in the warranty period. While the wear rates would increase with the fuel dilution, I think the likelihood the engine will go in 60-70,000 miles is very low (unless the oil level rising reaches a critical level, but if you notified Honda, this would be documented). I don't think you would see any major problems until well past 100,000 miles, where you won't have any warranty anyway.