I'm glad that you've solved the issue. It's a pity I didn't find this topic earlier as I faced the same problem. Then my friend told me to check a VIN number (I did it on
https://www.quickrevs.com.au/vin-check before buying the car). Usually, it is possible to find the engine number in the lower corner of your windshield on the driver's side. And now I know that the engine size can be found by VIN number. In the series of numbers and letters, the tenth from the left denotes the model year and the eighth is the engine codes.