|
As lubrication technology improves, so does the base oil used in the manufacture of engine oils. Oils are also changed and updated in response to advancements in engine technology. Modern engine oil is a precise mix of a base oil with additives totaling almost 10% of the oil by volume. Pound for pound these additives are each more expensive than the base oil, and oil companies are in business to make a profit. Common sense says that these additives are there with good reason. Modern engine oil is a multi-purpose fluid in an engine, carrying the heat away from hot spots and releasing it in the sump as well as providing lubrication to critical areas which need protection against wear. Different additives are put in the oil in order to address the needs of each specific engine system that is supplied with oil: |