Recycling the 180 million gallons of recoverable motor oil thrown away each year would produce enough energy to power 360,000 homes annually. Finally, if the 1.3 billion gallons of oil wasted each ...
Is special high-mileage oil worth the extra price compared to a conventional lubricant? SEE ALSO: What is Motor Oil? Z. George Zhang, Ph.D. and director of Valvoline Technical International thinks so.