Do you really need fuel system cleaning
I recently took my 2015 Elantra for it's normal scheduled oil change, at it just turned over 60,000 miles. The guy at the shop wanted to up sell me on a few items, for which I didn't go for. He said at 60K they recommend their $180 fuel system service, he couldn't really tell me how it worked and so I was suspicious. While I don't believe the service would be detrimental to my engine, I also don't know what purpose this serves? It is my understanding the fuel filter system is in the gas tank and not something that is really serviceable (he told me it was in the tank, I just got the car a few months ago, haven't researched this yet). Any thoughts on what this service entails and is really necessary, would be appreciated.