thanks man.
I like to think I have a good understanding of engine oils. It just struck me as something strange with this Hyundai when there was no strict specified viscosity rating in the manual, something I was used to with previous cars. Not used to having any choice
For example my Fiesta needed 5w30 in this country.
If I read the info on the hyundai website properly it should take 5 or 10w30. I might keep using the Castrol Edge I have left over from my Ford, as someone else said it is good oil.
I usually do an oil change every 7000km or so so the hyundai interim services at 7500 are perfect for me, I will probably get them to do it.
I know some people like to go right to the 15,000km service, I just don't feel comfortable. The oils are probably able to last much longer but better safe than sorry, the other bloke above was right, it's cheap insurance.