Glad that they are factory fill full synthetic. Wonder if the Kia plants are similar?
Generalized OE statements. Nothing to worry about.
Typically, those that use synthetic want to run the oil longer. Looks like they want you to follow their OCI recommendations regardless of oil used. So, if you do a 15k OCI with M1 or 25k OCI AMS or NEVER change the oil with Synful Lube, and you have an issue, warranty is not covering it.
Generalized OE statements. Nothing to worry about.
Typically, those that use synthetic want to run the oil longer. Looks like they want you to follow their OCI recommendations regardless of oil used. So, if you do a 15k OCI with M1 or 25k OCI AMS or NEVER change the oil with Synful Lube, and you have an issue, warranty is not covering it.