additives

What fuel are you all using in your 2015 Genesis V6 and V8? I have a 2015 V8 and using regular gas 89 octane. Also is anyone using fuel additives such as Seafoam?

Ok everyone, this is worth a read and forum discusion. To start....I am not the author of this article. I was very intrigued by this article and I believe it's a nice perspective that I don't believe is captured in the forum yet. Some viewpoints and opinions have been expressed in other...