Shell Rotella CK-4 And FA-4 - The Future Of Diesel Engine Oils

In association with the EPA (Environmental Protection Agency) and National Highway Traffic Safety Commission, engine manufacturers are changing the requirements for the lubricants we’re using in our vehicles. As a result, a new generation of engine oils is being rolled out by Shell, called Rotella CK-4 / FA-4, which will be a direct replacement for your current oils.