Shell Lubricants has introduced Shell Rotella T6 10W-30 full synthetic heavy-duty engine oil, which provides the ... economy capability of 2% compared to SAE 15W-40 heavy-duty engine oils.

A new oil by Shell aims to solve this issue by offering a 5W-30 full-synthetic heavy-duty oil ... “Then we had to introduce non-phosphorous chemicals to boost the oil to give the diesel side ...