Union Pacific boosts biofuel blends in trains

In Nebraska, Union Pacific locomotives will be getting a boost of biodiesel fuel. Progress Rail, a Caterpillar company, approved the use of up to 20% biodiesel blend in specific EMD locomotive series operated by the railroad. Previously, the locomotives were approved to operate at 5%.

The updated fuel recommendation comes after testing high-horsepower locomotives, used for hauling freight long distances, and monitoring performance for things such as fuel consumption, as well as impact on engine oil and fuel filters. Progress Rail is currently undergoing additional testing and development.