When the supercharger is securely in place, the oil feed and return lines are installed. Shown here is the return line being installed. Not shown is the feed line that runs from a port in the cylinder block to the head unit. Proper attachment of both with Teflon tape on the fittings' threads is imperative to prevent leaks. Because the Vortech blower uses engine oil circulated through it, its lubrication is refreshed every time the engine oil is changed.