Call it "upselling" if you want, but it's really a scam. Don't take your car back there for an oil change ever. I hit one of these places years ago- their big "upsell" was transmission flushes. I'll never forget the young manager telling me how much a trans flush would make my car last longer, extend the life of the trans, make all the clutches and disc packs like new again. All they had to do was hook it up to this cool machine which would completely flush all the auto trans fluid while replacing with all new while removing all the impurities. Playing along, I took him over to my car and pointed out my manual transmission. Like any good liar, he claimed it also worked on manuals and would extend clutch life the same way. I never went back, and neither should you.