How Much “Synthetic” Is In My Oil?

Unlike food and drug companies, which must disclose the ingredients in their products, lubricant manufactures aren’t held to the same mandate, which can cause confusion if you’re shopping for synthetic motor oil. Store shelves are lined with oils described as “full synthetic,” “semi-synthetic,” “synthetic” and even “100% synthetic.” When you crack the cap on those … Continue reading How Much “Synthetic” Is In My Oil?