I'm going to do an extra oil change on my van every 6 months along with the official yearly service. I do on average 12,000 miles a year of mixed driving so this would equate to an oil change every 6,000 miles. A garage will be doing the annual service and I'll be doing the extra oil change.
What is your personal preference of brand and type of oil? And is a genuine filter necessary?
Any links would be appreciated.