Hello.
For engine 1.2 htp 44kW you can use oil with specifications :
1. 502.00 (5W40) -> for 15000 km or 1 year
2. 504.00 (5W30) -> for 30000 km or 2 years
If there was castrol 5w30 with the standard 504.00, then I would stay or change for something better, e.g. motul, liqui moly, or other premium oil
Please look this: https://oleje-pema.cz/katalog/oleje/oleje-motorove-c59227599015144?filter-f%5B21%5D=9000000356482288767&filter-f%5B90%5D=9000660643279536425&filter-f%5B20%5D=356482287804%2C356482286664
Personally, I recommend an oil change every year or 15,000 km. it is much better for the engine and your pocket. Personally, I also buy castrol egde professional with the 504.00 standard and change it after a year or 15,000 km. I have no problems with the engine.