Check it Over
If a component might harbour deposits that could find their way
back into the system, clean it: oil supply connector, sealing
washers and dipstick. If it is not possible, replace it.
Make sure you also change the accessories
oil pipes, return pipes, oil pick-up pipe strainer,
air filter, and the valve cover breathers.
You will also need oil, oil filter and
engine flushing additive
each time you flush.