Valvoline Premium Blue 7800 15W40:

Valvoline Premium Blue is THE ONLY ONE™ engine oil exclusively recommended and endorsed by Cummins. Premium conventional heavy-duty diesel engine oil designed to provide advanced lubricant performance in modern, emissions treatment equipped Cummins and other diesel engines.

• A unique formula providing enhanced lubrication performance and supporting improved engine protection.
• Special alkaline additives will neutralize harmful acids over a longer period (TBN retention) and contribute to reduced engine wear, reduced breakdown risk and lower maintenance costs
• Dispersancy allows the oil to suspend and carry away pollutants of diverse sources, such as soot from combustion. The special technology used in this formula optimizes soot dispersancy and can help to reduce soot related engine wear