I want a diesel badly. I've done the research. DEF fillups aren't bad. The filter looks to be not all that hard to access
It's easy to replace fuel filter for Mazda6 diesel. Remove two bolts that holds filter box, remove two hoses (in/out) and cable. Take "box" out, replace new filter, put back and connect everything again. Operate manual fuel pump till it gets stiffen. And that's all.. Main fuel filter is "under hood", not in tank..
YMMV if the Mazda6 diesel will be the same as the CX-5. Yet to figure out the cost of a DEF filter replacement. Looked into additives that are already in winterized D1 D2 fuel. So I shouldn't need to add anything more to the gas unless we are talking -10 or worse, which does happen in Minnesota.
All of that is all well and fine. The problem is the damn thing won't be out until fall / end of year, and no price tag associated with it yet. After losing my car in Dec I've been running an Enterprise rent-a-car for the last few months which is starting to get spendy. I suppose I could spend a grand and a half on a beater to last me 8 month but I had a road trip planned with friends for June and I'm not driving a beater 1600 miles. I really wish Mazda hadn't delayed this until end of year. I know they have their reasons. But it sucks.