I've been reading the Hyundai forums and many are posting that the 2.0t engine should use high octane fuel, 91 or 93. Manufacturer and manual both say that the engine is suited to use 87. The complaints that people have been posting pertain to detonation issues with 87 octane in the egine, causing plugs to melt.
Has any of you heard a case like this? With any turbo engine? Should I immediately just go for 91 octane starting now?
Has any of you heard a case like this? With any turbo engine? Should I immediately just go for 91 octane starting now?