Diesel engine oil additives are popular add-on layers of protection, but many of their cornerstone benefits are already engineered into base lubricants. Brian Humphrey, OEM technical liaison for Petro ...

Under normal circumstances, most modern engine oil and gasoline brands work fine on their own to keep your engine running smoothly. But there may be cases where even the best of them could use a ...

Amsoil has a complete line of diesel engine synthetic oils. The line features the Signature Series Max-Duty Synthetic in 5W-40, 5W-30, 10W-30, 15W-40, and 0W-40 grades. The line also includes ...

Let's face it, most engine additives don't really improve performances. If you want to try one that does, here's what you ...

Not up on zinkdialkyldithiophosphate? No problem. Grasp these points about engine oil additives and leave chemistry to the engineers. ConocoPhillips announced a startling claim last year: It had ...