It appears fuel dilution is sending some folks back to dealerships often. I hope this gets cleared up soon. We're supposed to be getting the CX-5 diesel stateside after the new year. Fingers crossed.
http://smh.drive.com.au/motor-news/backlash-over-mazda-cx5-diesel-oil-issues-20120821-24k6w.html
http://smh.drive.com.au/motor-news/backlash-over-mazda-cx5-diesel-oil-issues-20120821-24k6w.html