Yes. This oil is formulated with strong soot dispersancy additives that help keep soot particles suspended, reducing abrasive wear inside the engine. Combined with excellent film strength and our patented ceramic coating, it provides solid protection against the increased wear that soot can cause — especially in high-mileage or work trucks.

It performs very well under demanding conditions. The robust additive package and high film strength help maintain protection during high-temperature operation and heavy towing. Many users report consistent performance and reduced engine stress when pulling heavy loads.

Yes, for many applications. Our 15W-40 Synthetic Blend delivers excellent protection, strong soot control, and reliable performance under load at a more accessible price point than full synthetic. It’s a smart choice for fleets, work trucks, and high-mileage diesels where you want strong performance and good value.

Yes. The ceramic coating actively seeks out and forms a protective layer on worn or high-friction surfaces inside the engine. This helps reduce wear, improve smoothness, and extend engine life — especially beneficial for higher-mileage diesels that have accumulated wear over time.

Many users successfully run longer drain intervals with this oil, thanks to its strong additive package and good oxidation stability. However, we always recommend following your engine manufacturer’s guidelines and considering your operating conditions, load, and oil analysis results when extending drains.

All TriboDyn TRI-EX² motor oils are proudly manufactured in our own ISO 9001 certified facility in the United States by a team of experienced tribologists who have engineered lubricants for aerospace, racing, and heavy industry for decades.