In anticipation of a new heavy duty engine oil API classification aimed at improving fuel economy with oils meeting lower high-temperature/high-shear viscosity standards, Shell did a field test of an experimental low HTHS-viscosity version of its Rotella engine oil.
It shared the results with trade press editors on May 14, 2014. Here Howard Hill, engineer, lubricant technology, explains the results to HDT Editor in Chief Deborah Lockridge.