Just got my $20.00 rebate check in the mail from Quaker State for my first oil change using their full syn 5W/30. Also enrolled in Quaker State 300,000 mile engine warranty program. (10 years or 300,000 miles and is transferable). Quaker State promises that if you make 10 years/300,000 miles using their oil, they will then pay you the KBB book value for your Santa Fe at that time. Basis of what I have seen of my little Sport 2.0T, we should have no problem making it. On the Quaker State website is a piece about some people who have easily made it with their vehicles. Funny how Mobil 1, the so-called leader of the pack, isn't promising anything or putting a warranty on anything long-term. I ran Mobil 1 in the past, usually at a price premium, but those days are gone for me. Quaker State untill I die or until I reach 300,000 miles or 10 years, whichever comes first. Mobil 1 never paid me 20 bucks.