I do mostly A Road and Dual Carriageway driving and there's no way when I had the 2.2 that I'd go 22K between changing the Oil, just a personal preference. Same as I wouldn't do the recommended 12K in the current 1.6. I would go 10K max. Again, personal preference. I service my cars more rigidly than the Honda service manual suggests and I hope that it makes the car go better and last longer? I use OEM on all service parts as I think they are better quality and hopefully with that mindset will get a hell of a lot more trouble free miles.Why not?
20.000 can be traveled in many ways.
If most where motorway miles, they'd pretty easy on the engine and oil.
No use overengineering a product...