Caterpillar Sequence 1K/1N Engine Test

 

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Determines acceptability of oils for Caterpillar engines, measured by oil consumption and deposits on pistons, rings and other components. 1K uses a high-sulfur fuel, 1N uses a low-sulfur fuel.

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The Valvoline Company
Fleet Testing and Engine Laboratory
22nd and Front Streets
Ashland, Kentucky 41101