Most folks use the synthetic mobile 1 0w20 and either do it themselves or bring in the 2.6 quarts to hand to the Honda guys for them to use if they are doing it at a dealer.
Dealers also almost always overfill. If you have one of those pella pump oil extractor things, it is easy to remove a little overfill from the dealer - assuming they use the right oil in the first place.
Dealers also almost always overfill. If you have one of those pella pump oil extractor things, it is easy to remove a little overfill from the dealer - assuming they use the right oil in the first place.