The correct oil type and quantity is the lifeblood of your vehicle. It keeps all the components of the engine working efficiently, and it helps reduce the accumulation of damaging material’s collecting in the engine. As you’re aware, the engine can get very hot during normal operation and oil helps pull the heat away from the combustion chamber essentially preventing the engine from blowing up. As oil collects heat, varnish and carbons during the course of protecting and keeping the engine running smoothly, it eventually becomes less like liquid and more like sludge. No matter how good the oil is it will require replacement and new oil filled to enable continued life of your engine.