I just got this car less than 2 months ago I have to check how much oil burns, if it is not hard on the oil I will switch to AMSOIL 1 year OC otherwise I will use Mobil 6 months OC.Amsoil has two different formulations in 0w30. You need to check out the Amsoil EOT Euro 0
You can't really compare how a motor oil will perform in such a cursory manner. You joined in 2008? Probably have seen some talk on this. It seems we are getting away from comparing paper marketing specifications, especially TBN. But some folks cling to that.
There is no magic oil. One might be better for your use, can't say just like the other OPINIONS here.
What does the 15K Km OCI with Mobil1 look like on your KIA Forte?
I had a Kia Spectra 2006 it was too hard on the oil and I gave up to 1 year OC with AMSOIL. I was using Mobil 1 0-40W, 6 months OC, perfect for that engine I got rid of the car because of the rust, not the engine, it was 356.000 Km running like new never had a problem.