Let's see if I can revive an old discussion. I've read through a lot of threads about OCI and still have one thing to clear up.
My mechanic (actually the guy at the front desk) told me to stick to a 5k mile OCI because the filter only lasts that long, and I could damage the turbo if I try to push beyond that. I'm not sure which filter they're using (i assume MANN), but he claimed the stock filter that comes with the car is the only one that can do 10k miles, and, unless you're getting your filters straight from VW, anything else is only going to last 5k miles.
Thoughts?
(BTW I often change at 10k still, but in my head I have to add 5k to the sticker they put on my windshield)