Seems like some guys with the 5spd mirages can reach the oil filter from the top, this is hard to almost impossible to do if you have a cvt with the larger rad fan shroud.
I don't know if big arms can reach from the top with a 5spd? If you can't reach it from below remove or partially drop down the splash shield that runs along the bottom of the rad support and that'll give way more room to reach up and grab the filter with 2 arms if needed. But if you have the little 1230a105 Mitsu brand filter on there and it's torqued on there at 150lb-ft then you might need a filter socket to break it loose. That's the only "hard" part. And it's not that hard usually unless your rad support got smashed back into the filter(like many work cars that I see...). Drain plug is easy 17mm..
I'd dump 5w30 in there if I was down south. The difference in viscocity doesn't seem much different than 0w20 but when it's -20c you can tell instantly when pulling the plug(cold oil). I went from a nv200 to a Mirage back to back and the nv with 5w30 came out like syrup compared to the 0w20. I almost wonder if I had 15w40 dumped into my barrel by mistake...It's not though.I did a nonscientific comparison already.
Mirage videos:
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View my fuel log 2014 Mirage SE wussie cvt edition. 1.2 automatic: 37.7 mpg (US) ... 16.0 km/L ... 6.2 L/100 km ... 45.3 mpg (Imp)