Lol not a big deal? Go take a 5.4L to the dealer and sure it might not be a big deal but you’ll pay a “big” price to get it done
I do! My Express van has had all oil changes done at a Chevy dealer, since I bought it. Can't beat an oil change and general look-over for $28..!
To keep my warranty and if they fuck it up they have to fix it. Lots of story’s I read at the time of shops fucking it up and having problems later, like plugs blowing out with the threads etc... not saying the dealer wouldn’t do some crap like that but I had alittle more faith in them.
Every shop has to fix its mess ups and warranty is kept as long as you keep your receipts of service, they can't deny just because it wasn't done at dealer. Besides, there are no 5.4L motors left with factory warranty to worry about. Most people buying them need older cheaper vehicles and will go to more reasonably prices shops to get work done.