it's a 6 years old car. If there is no history of cvt oil change then you can change it. Get it done from @rajaatta . He can get it done by the oem method. Even dealership won't change cvt oil properly. Also, keep on using 5w30.
Before changing cvt oil, get it inspected first by the dealership, just open the drain bolt slightly take a small sample of oil, either in a small can or on a napkin. If it's pink/red then you're good to go for next 40000kms, if it's brown then change is required. If its black then change it immediately. If it's black then you may also face a cvt failure after an oil change.