Engine Wash
Although engine flushes and other additives may be required periodically at extended intervals, there is no need to invest in them with every scheduled maintenance. Additionally, avoid falling into the trap of “manufacturer approved” formulas as these come with unnecessary premiums.
These solutions are usually offered to customers to make money quickly. Also, make sure the vehicle lists replacement parts or perishable items. This includes air filters, oil filters, brake pads, etc. Ask permission to replace the discarded item.