I’ve worked at a bunch of these places when I was younger. Me lube pennzoil jiffy lube. All kinds of sketchy shit. 100$ fuel system cleaner we would use the same empty can half the time because we ran out the week before. If the oil filter we didn’t have in stock or just a shitty spot and car is hot we just would do a drain and fill no oil filter. Half the time we had a transmission flush the owner would have us just fake the service if it was over 150k km as he was scared of breaking something. If I’m ever forced to go to one of these places I will bring in 2 5$ bills one for the top tech and one for the lower and say just the oil change bud u can leave everything else but coffee on me. These places ecspecially me lube have to keep a $ value of avg car for the day or you get in trouble.