It doesn't wear out, it just gets dirty!

Re-refining is an energy-efficient and environmentally beneficial method of managing used oil. Less energy is required to produce a gallon of re-refined base stock than a gallon of crude oil. The price of re-refined oil is comparable to virgin oil; it may even cost less!

Oil does not wear out; it simply becomes dirty as it does its job. Once water and contaminants are removed from collected used oil, it is returned to a full and useful life as re-refined oil with all new additives as required to get the API Seal of Approval.