So I have the 1.6T as well. The dealer where I bought the car sold me a 3750 mi interval service plan, but as SCM wrote, the service manual states 6000 Normal driving, 3000 Severe. I live in NY and drive in NYC a lot, so I assume this will be severe. I asked several people at the dealer on different occasions and they both said 3750 for the 1.6T. I introduced myself to a dealer closer to me who I think I will use for service...he went online and printed the Hyundai recommendation for the 1.6T and it was every 3000 for severe (just like in the manual). I went online here and the same thing
Hyundai Motor America provides the Maintenance Menu for all 2000 and later model year vehicles.
www.hyundaiusa.com
He also stated that Hyundai recommends conventional oil and if I dump it every 3000, it is a waste to put in synthetic. I plan to cancel the service plan for the 3750 and do conventional every 3000 so as to ensure my warranty is not violated. Any thoughts?