Yes turbocharged engines require much more maintenance to keep the turbocharged engine working properly and to make the turbocharged engine last longer.
A turbocharged engine unlike naturally aspirated engines will require more frequent oil changes and new spark plugs more often than a regular naturally aspirated engine.
Then there's also the maintenance of the turbocharger on the engine to keep it from going bad and failing on you.
Although turbocharged engines can use regular non premium fuel the use of premium fuel is recommended when you have a turbocharged engine.
When you use non premium fuel in your turbocharged engine it can result in poor acceleration or cause the engine to take longer to get up to speed.