Things have definitely changed over the years and with my current MINI Cooper S the oil could go unchanged up to 25,000Km depending on how it's driven! I don't know how many have let it stretch that far however.
Obviously the oil technology has gotten better with the lower viscosities and other properties which allow longer periods between changes these days.
HOWEVER, I've been advised a few times by different mechanics that oil is cheap and changing it regularly is great preventative maintenance. I wouldn't think that it's a 'waste' to change the oil every 7,500 km if that's what you want to do.
One last thing- A mate of mine reckons that car makers put millions into R & D so who are we to go against their recommendations?
Mick
tornado red GTI MkVI, 5dr, DSG, Sat Nav, RVC, MDI.
Red Honda Fireblade Red Cooper S (SOLD)
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