[...] I do check it riding but obviously not in a situation where something dangerous is possible. On a straight stretch of road without traffic, nothing is going to happen in the second I look down.
Thank you, Bodi. That is exactly where the danger is. Every time you do it, your brain learns - unconsciously - that it can be done. This 'experience' will be confirmed every time you do it. Over and over. It builds so to speak, every time.
But alas, like Confucius said: all things go right... until one day things go wrong.
In The Netherlands we have quite some casualties in traffic due to people who have 'trained' themselves to multitask. Think: cell phones.
But hey, if you're
really concerned over oil pressure - Honda clearly wasn't - you could add a gauge in the view of the rider (see pic).
Bonus is, there will be less risk of the sender leaking all of a sudden, due to hitting it against something, like when parking. When this happens unnoticed, you will never forgive yourself having fitted the damned thing.
It is just a gadget. Young girls also like gadgets... for their Barbie dolls.