things shops tell newbs or unaware people

[quote=“layzie,post:56,topic:32352"”]

snip ***** wrong, …i put a fuel treatment/injector cleaner every 3,000 miles when i do my parents oil changes

[/quote]

Well anything is worth it when you are doing it yourself, but when some chick with a moustache asks me if I want them to put into my new car; It sounds like BS. I dont trust anyone trying to sell me something, if I want to go out and buy it and put it in myself, then its a whole other story.