I just purchased a 2015 KIA Sportage with the 2.4L GDI engine. Anyway, I have been dong some research on the this type of engine, and it appears that it suffers a lot from carbon deposits. Kia recommends their additive if top tier gasoline is not used. I have been using Shell, but I was wondering if this type of engine will be a real headache down the road? Is there anything in addition to the KIA manual that would help keep the carbon deposits low?
I have read that Audi and VW have had tons of issues with this engine, and some people were reporting their engines blowing up. I’m just wondering if any of you have GDI engines, and how reliable they’ve been?