How often do you guys change your oil?

[C2K]

I do mine as per Peugeot's schedule of every 12k miles (roughly every 6 months with my mileage) using a decent quality oil and filter.

Given that my last 306 HDi had the same servicing regime and was still going strong with over 250k miles on it and didn't use any oil, I'm happy to do that on my current one too.

This.

Took mine from 70 to 274K with 12K oil and filter intervals using Peugeot filter and Quartz 7000.

I did 95% motorway miles though, but changing it at 3K you're just wasting your money.