The Readers Have Spoken 

My wife and I were watching beach volleyball in Laguna Beach, California, on January 1 …

Quality Is Not as Simple as It Seems 

Quality is at the heart of the oil business. We all subscribe to the posi …

Steve Swedberg posits that aftermarket additives, often called “snake oil” or “mouse milk,” may have some useful …

Steve Swedberg discusses why the API CH-4 heavy-duty engine oil service category may soon be phased out.

Steve Swedberg compares several SUVs currently on the market and the lubricants that they require.

Steve Swedberg traces the evolution of used oil from careless disposal to rerefining.

Steve Swedberg makes an argument for more widespread adoption of API FA-4 engine oils.

Steve Swedberg disputes the notion that the internal combustion engine is on its way out.

Steve Swedberg clarifies the ambiguity of SAE engine oil viscosity classifications.

Steve Swedberg does an API 1509-themed version of his annual Q&A column.

Steve Swedberg explains the evolution of todays base oil market and proposes a future path.

Steve Swedberg ponders a lubricants industry without phosphorus.

Steve Swedberg laments the continued lack of standard specifications for transmission fluid.

Steve Swedberg explains the origins of ILSAC and API symbols and what they really mean.

Steve Swedberg asks whether universal engine oil can include natural gas powered vehicles, too.

Food comes from plants, but that doesnt mean biobased lubes are always fit for food processing.

Steve Swedberg tries to cut through the fog of engine oil jargon.

Steve Swedberg refutes the most common justifications for 3,000-mile oil changes.