Leading brand immediately approved after Mack issues new, more stringent specification for EGR engines.

Shell Lubricants has announced that the company's top-selling heavy-duty motor oil - Shell ROTELLA^® T Multigrade 15W-40 - has successfully met the new Mack EO-N Premium Plus 03 specification, allowing for use in all Mack engines.

Mack issued the new specification guidelines on September 16, 2003.

"The specification describes engines oils to be used in Mack ASET AC and AI 2002/2003 emission certified engines," said Greg Shank, staff engineer - lubrication, filtration & coolant technology for Mack Powertrain. "Shell ROTELLA T has been evaluated and has met our specification."

Dan Arcy, market product manager for Shell, added, "We've been anticipating this new specification and the higher performance standards that it demands for some time now.

At Shell we strive to be leaders in meeting the latest performance requirements. Following extensive testing, we're pleased to report that Mack has approved our premium motor oils for both cooled and internal EGR Mack engines, as well as for the earlier Mack engines without EGR systems."

Arcy explained that the new Mack EO-N Premium Plus 03 specification required additional testing to validate that heavy-duty motor oils meet increased performance standards in four primary areas. These include the ability to manage higher levels of soot; the ability to better resist shearing; improved seal compatibility; and a new, minimum Total Base Number (TBN).

Arcy added, "Shell works hard to ensure our premium oils such as Shell ROTELLA T meet or exceed these new requirements."