N.C. Division of Pollution Prevention and Environmental Assistance
Re-refined Oil

Common Myths Regarding Re-refined Oil

Myth #1: Re-refined oil is not of equal or sufficient quality compared to virgin oil.

Fact: Re-refined oil is the same quality as virgin oil. Oil does not break down, it simply gets dirty; additives become depleted, and chemicals break down. The re-refining process cleans up the used oil and puts additives back in. Re-refined oils now carry the American Petroleum Institute (API) seal of certification.

Myth #2: Re-refined oil will void the warranty on new vehicles.

Fact: New-car and new-engine manufacturers require that an API-certified oil be used to keep a warranty intact. Since re-refined oils earn API certification, the warranty will not be voided. Using any API-certified oil - re-refined included - keeps the warranty intact.

Myth #3: Re-refined oil may be more expensive than virgin oil.

Fact: Since re-refined oil is part of a budding industry, some products may have higher prices than products from the more established virgin-oil industry. This is not always the case though, as local market considerations may affect prices. Re-refined oil purchased from the state contract currently costs an average of ten to fifteen percent less than virgin oil.

Myth #4: Gaps exist in the geographic availability of re-refined oil.

Fact: Re-refined oil is available from the state contract in addition to other vendors. Additionally, as demand grows for this product, so will the number of vendors who will make it available.

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