Last week we explained the basics of motor oil, from viscosity to additives and everything in between. Now it’s time to tackle a much more contentious issue: synthetic versus conventional.

Synthetic fluids tend to have the highest fire resistance and cost. They contain no petroleum or mineral oil base, but are instead formulated from alkaline organic and inorganic compounds along with ...

Royal Purple’s Synthetic Oil features enhanced additive technology that helps to prevent metal-to-metal contact beyond both GM dexos1 and ILSAC GF-5 specs, while providing better fuel economy ...

inhibiting additives Viscosity modifiers are used to increase oil viscosity at higher temperatures. Deposit control additives prevent soft sludge and hard deposits, while anti-corrosion agents stop ...

Higher-quality crude goes through extensive distilling processes to produce synthetic oil. Adding state-of-the-art artificial additives (antioxidants, corrosion and foam inhibitors, anti-wear ...

The Food and Drug Administration may ban Red No. 3 in the coming weeks. Find out more about this synthetic coloring, derived ...

Valvoline Extended Protection Full Synthetic Gear Oil, the brand's first-ever super ... formulation featuring performance-enhancing additives. Anti-foam agents which quickly break down to provide ...