I'm flushing the motor oil of a Saturn SC2 2002 model, using kerosene. Flushing agents like kerosene and diesel are great tools for gutting out and cleaning sludge from all the large and narrow oil passageways in your car. Your engine will run cleaner and more efficiently when these passageway are sludge free.

Engine oil flushes, however, can damage rubber oil seals and gaskets if they are done too frequently and/or if performed with undiluted flushes where all the oil is drained from the crankcase beforehand. Research this topic before attempting. In extreme cases an undiluted flush may be necessary.