Cooled-EGR-system components fit neatly on the right side of this Mack ASET highway engine. Mack also uses an "internal-EGR" system (I-EGR) on the engines in its vocational trucks. The I-EGR system ...

API PC-12 engine oil categories CL-4 and FB-4 are advancing toward a 2027 launch. Here’s what the changes mean for fleets, ...

CJ-4 products meeting both ECF-2 and ECF-3 include the Delo 400 LE Multigrade and Texaco Ursa Premium TDX EC CI-4 PLUS products meeting ECF-2 include the Delo 400 Multigrade, RPM SAE and Texaco Ursa ...

ExxonMobil announced that four of its heavy-duty diesel engine oils have met the new CI-4 Plus specification of the American Petroleum Institute (API). Sept. 1, 2004 ExxonMobil announced that four of ...

The diesel engine oil available for your fleet is about to undergo a major change. Two new oil categories, CK-4 and FA-4, have been announced by the American Petroleum Institute (API) and will replace ...

In August’s Equipment & Maintenance department, we reported on the progress of a new oil classification for new engines using exhaust-gas recirculation (EGR) to curb NOx emissions. Most diesel engines ...

Mack Trucks announced that its newly formulated genuine Mack Engine Oil EOS-4.5 will extend engine oil drain intervals for customers. The oil is API CK-4 compliant and is also backward-compatible with ...