I drive 180 miles every work day (five or six days a week) and being my old ride was getting a little long in the tooth I just picked up a new 2015 Nissan Versa SV with CVT. So far, after almost three thousand miles, I'm getting slightly better than 41 mpg, which is a great improvement over the 29 mpg I had been getting in my old ride. Anyway, I'm gonna change my oil for the first time pretty soon and I've been wondering if it'd be worth it to switch to synthetic. What do ya'll think? Do I need to do anything special to swap over?