Bell 1 DX-K is a high-performance heavy-duty diesel engine oil that meets the latest industry standards and OEM specifications. It has been formulated to meet the new Proposed Category 11 (PC-11) requirements and is split into two subcategories, one that maintains traditional heavy-duty oil criteria and one that offers additional fuel efficiency and economic benefits for modern diesel engines while still providing durability. Bell 1 DX-K has been tested and proven to enhance engine performance, including increased oxidation stability, shear stability, and aeration control.
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*Read across SAE viscosity grade