Seeing "add pack" tells me you are also on BITOG, lol. I haven't paid for someone to do an oil change in 30 years.I've only changed my own oil for the past 10 yrs. No longer can you trust a shop to do such a simple task properly
(mixing oils with diff. grades/viscosity/add packs/ratings/specs.......over & under filling, not changing the filter or using a junk one,
stripping the drain plug, etc.). Figure a way to screw up, and they'll do it.
Mike B