Mobil Delvac heavy-duty diesel lubricants have been chosen as the featured engine oils of TravelCenters of America.

"As the leading supplier of on-highway maintenance and oil changes, we pride ourselves on offering our customers only high-performance, brand-name products that deliver exceptional value," said Randy Graham, vice president of shop marketing for TravelCenters of America.

"We chose to feature Mobil Delvac heavy-duty lubricants because of the products' reputation for outstanding performance."

The Mobil Delvac series of heavy-duty lubricants, which includes Mobil Delvac 1300 Super and Mobil Delvac 1 fully synthetic engine oils, are designed to reduce wear on critical parts and help extend engine life in on- and off-highway applications.