Caterpillar Diesel Engine Oil (DEO)(multi-grade)

Caterpillar **DEO **multi-grade **oils **are **formulated **with
detergents, ***dispersants, ***and ***sufficient ***alkalinity ***to
provide ****superior ****performance ****in ****Caterpillar ****diesel
engines. ** **DEO **multi-grade **oils **are **blended **in **two
viscosity grades: *SAE 10W-30 and SAE 15W-40.

http://www.biodiesel.org/pdf_files/O...ons%202004.pdf

http://www.cat.com/cda/files/199221/7/pehj0059-02.pdf