www.pmmag.com/articles/88864-castrol-tection-extra
Castrol® Tection Extra™
June 1, 2005

Castrol® Tection Extra™ is a 15W-40 diesel engine oil that fights viscosity loss with a unique polymer and resists breakdown. Its superior dispersancy manages high soot levels. A detergency neutralizes acids generated in the engine, and a unique low-ash chemistry will not compromise performance in older engines.
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