I have a 2002 Honda civic with 104k runs great but the dealer suggested I do a fuel in jection service, seems a waste any ideas?
If it’s running properly, it’s a total waste of money.
There’s no reason to have the fuel injectors cleaned if there’s no drivability problem. But if you want, you can add a can of SeaFoam to a full tank of gas on occation to keep the injectors clean. And it’s a hell of a lot cheaper.
Agreed, it’s a totally unnecessary revenue generator that has absolutely no benefit.
Once a year, something in the tank. 1992 explorer has never been in shop for injector flush service.
And likely if you used nothing in the tank by gasoline it would have been just as good. However, a bottle of a good product once a year is going to be less than what the dealer is trying to pull and it should work just as well.
Now, why are you (the OP) even talking to a dealer? Dealers are no better (or worse) than independent mechanics, but they sure charge more.