I agree with your assessment of differences in programming on the CVT. I think that Mitsubishi engineers obviously put some thought into the process and wrote some decent software for the CVT. Since the the JATCO CVT7 is used in a variety of small cars it has really been problem free for the most part around the world in the Mirage. Now in the Spark & Versa it has been a real problem with lots of premature failures and drive-ability issues. Could an extra 30 hp cause all the premature failures on it's own? It obviously might be a contributor but I believe that the primary factor is substandard software that causes over stressing and heating issues which of course will shorten the life of any transmission dramatically.
Originally Posted by palebeachbum
View my fuel log 2015 Mirage ES 1.2 automatic: 40.4 mpg (US) ... 17.2 km/L ... 5.8 L/100 km ... 48.5 mpg (Imp)