Replacing drained engine oil with fresh and clean oil.
Process:
Vehicle Inspection: A trained technician begins by inspecting the vehicle to ensure it is in a safe condition for service. They may check the engine oil level and condition, inspect the undercarriage for leaks, and assess the condition of the oil filter.
Preparation: The vehicle is raised on a hydraulic lift or supported securely on jack stands to provide access to the underside of the engine. The technician may also place a protective cover over the vehicle's body panels to prevent spills and damage.
Draining Old Oil: The technician locates the engine oil drain plug, typically located on the bottom of the oil pan, and removes it using a wrench. The old engine oil is allowed to drain completely into a collection pan, ensuring that all contaminants and impurities are removed from the engine.
Replacing Oil Filter: While the old oil is draining, the technician removes the old oil filter using an appropriate filter wrench. The filter housing is cleaned, and a new oil filter is installed, ensuring a proper seal and secure fit.
Refilling with New Oil: Once the old oil has been drained and the new filter installed, the technician replaces the drain plug and begins refilling the engine with fresh, clean oil of the appropriate viscosity and grade as recommended by the vehicle manufacturer. The technician monitors the oil level using a dipstick or electronic gauge to ensure it is within the recommended range.
Checking Other Fluids: While performing the oil change, the technician may also check and top off other essential fluids, such as coolant, brake fluid, power steering fluid, and windshield washer fluid, as needed.
Final Inspection: After completing the oil change and fluid top-offs, the technician starts the engine and allows it to run briefly to circulate the new oil throughout the engine. They check for any signs of leaks or abnormalities and confirm that the oil pressure and level are within normal operating ranges.