Pagination for search results. This is the median price based on sales of this product in the same condition from all listings on ebay.com in the past 14 days, or if there are any insufficient number of listings for a meaningful calculation, the past 90 days.Top Rated Plus.Learn More.1  Sellers with highest buyer ratings.his is the median price based on sales of this product in the same condition from all listings on ebay.com in the past 14 days, or if there are any insufficient number of listings for a meaningful calculation, the past 90 days. Top Rated Plus. Learn More. 1  Sellers with highest buyer ratings.
The viscosity index of synthetic base oils is higher than that of conventional petroleum base oils. Pure, Uniform Molecules Form Strong, Stable Lubricants. Petroleum oils have molecular structures that are randomly organized and, consequently, have limited performance abilities.
    Conventional motor oils are made from crude oil which has been is pumped from the ground and then processed in a refinery to create a base oil. Additives are then mixed into the base oil to change the viscosity, protection properties and heat breakdown levels of the oil.    Synthetic oil is also created in a similar manner to a conventional engine oil, using a base oil combined with a series of additives.ifference in a motor and an engineA motor uses an exterior power  source to do the work. An engine creates its own power to do the  work.   Answer   The original an â¦ swer is incorrect, as both an engine and a motor  require an external source of energy to operate.