I heard that the newer Honda turbo engines are problems due to fuel dilution and over heating. Plus, they prefer premium fuel!
Where did you hear that ? Unless the Honda web site is wrong it seems all of the Civics list regular unleaded fuel.
Not sure what “prefer” means with regard to fuel grade, but it is is a fact that Honda’s newish 1.5-liter turbocharged engine has an oil dilution problem. Honda has a new campaign underway to address the issue in the U.S. and Canada and it has been underway in Asian markets for some time. Here are some details.