Valvoline’s Premium Blue One Solution engine oil has become the first engine oil approved to meet Cummins Engine Spec (CES 20092) that allows for extended drains in natural gas engines. Premium Blue One Solution, an engine oil approved for use in certain natural gas, diesel and gas fleet engines, was first released in March. With the use of CES 20092-compliant oils, such as One Solution, Cummins Westport has recommended increasing oil drain intervals for ISX12 G, ISX12N, ISL G and L9N natural gas engines.

Details on the extended oil drain intervals:

• ISX12 G / ISX12N — Former Standard = 25,000 miles. CES 20092 = 40,000 miles (for vehicles with average road speeds greater than 25 MPH)
• ISL G / L9N — Former Standard = 500 hours. CES 20092 = 1,000 hours