Formulated to provide performance and protection in modern emissions treatment equipped diesel engines including those with Exhaust Gas Recirculation (EGR) Diesel Particulate Filters (DPF) and other modern diesel engine technology. Valvoline Premium Blue 8600 ES has a unique 10 000 mile drain extension in Cummins X15 engines enabling up to 60 000 miles when average fuel efficiency is 6.5mpg of higher. Valvoline Premium Blue is The Only One exclusively endorsed and recommended by Cummins.