GREENSBORO N.C. – Both full and semi-synthetic diesel engine oil blends are increasingly being viewed as the “base oil” for heavy trucks in the future, even though such blends are expected ...

If you have a diesel engine and want a synthetic oil option, look no further than Shell’s Rotella. Compared to a conventional 15W-30, this product can improve fuel economy by up to 2.8% ...

Semi-synthetic engine oils are a blend of mineral oil and man-made materials ... that are rich in carbon are used to make petrol and diesel. The remains are then used to make mineral oils.

WAYNE, N.J. – BP Lubricants is introducing the newly formulated Castrol Hypuron, a high-performance semi-synthetic diesel engine oil product designed for heavy-duty engines. The lubricant, formerly ...

These semi-synthetic engine oils straddle a middle ground — they cost more than conventional oils but less than full synthetics, and are said to last longer between oil changes than conventional ...

Semi-synthetic engine oils are a blend of mineral oil and man-made materials. Synthetic oils are your best bet if you want better engine performance without shelling out a fortune Photo credit ...