I wanna chime in on this. I received this letter but I can’t seem to find it in my glove box. If anyone knows where I can get a copy of this please send it my way I’d like to show this to my oil changers. I don’t get my oil change at the dealership anymore. It’s a all day process and I just don’t have the money for it. I go a trusted oil changer in my town and they have been noting that my Kia burn through oil before it reaches its next oil change. I admit I let some oil changes go a little pass it’s due date but lately I’ve been on point even 2 weeks before and it still happens (mileage not going over either) . They find it strange that my oil is burning through. Even now I don’t drive my car as much cuz of covid and I have another car to switch between it keeps happening. My oil changer said another Kia Soul owner was experiencing the same issue and after getting the engine fixed (under warranty) at the dealership, the engine blew out. The guy had to come to pick up records of his oil changes to show the dealership that he’s been on point with them as well. Maybe this is way. It didn’t have this issue up until the last year and half.