It is interesting to do a bit of research when it comes to synthetic motor oil. According to the Pennsylvania Department of environmental protection, about 9.5 million gallons a year is improperly disposed of in trash, sewers, and soil in that state alone. When you multiply these statistics by 50 states, it's not hard to see how used motor oil is one of the largest sources of pollution affecting groundwater, and wells, lakes and streams in the United States. One quart of motor oil can create a two-acre-sized oil slick, whereas a gallon of oil will contaminate over 1,000,000 gallons of freshwater.

These statistics are startling to say the least, and it appears that synthetic oils versus conventional motor oils derived from petroleum are not much better for the environment. Amsoil Incorporated has been producing and selling synthetic oil since the 1970