You never know when the hood needs to be opened - just to show off the clean bay might be enough reason.  Or like most of us, one day we will sell our car and having a clean engine bay speaks volumes about the care and maintenance of the car. *Pricing may be subject to change based on the vehicles condition upon inspection at arrival. *Man hours are based on per-person working. Example, 2 technicians working on your vehicle would take approximately 1 - 1.5 hours to complete a 2-3 man hour service.