Oil change joints rip shmucks off daily. They tried to get $280 out of my G/F the other day for her Civic, they claimed a light was out (it's not) they claimed the needed to "clean the fuel lines", they wanted to change the o2 sensor (it needs it, but it's a $90 piece, and i can do that too), they wanted to change her belts (they are fine), wanted to rotate the tires (they are new), blah blah blah. She called me and i said:
"No. Oil, Oil Filter, Air Filter, and leave"
Still cost her $60. I could have done it for $35. Learn how to do things yourself, save lots of money.