The Fuel-Efficient Motors   There are engines that are cleaner, more fuel-efficient, and possibly more trustworthy than older models. The bulk of heavy-duty diesel engine manufacturers in North America produced considerably modified engines last year to comply with the GHG17 emissions requirements issued by the US Environmental Protection ...

Here is the 2021 engine lineup from Cummins   Cummins has broadened the use of a number of technologies with the launch of its 2021 X12 and X15 engine portfolio. These technologies were previously only accessible on X15 Efficiency Series engines.   The oil drain intervals and fuel efficiency are also getting better.   ...

What more could you want than lower gas prices and fewer pollutants?   In a time when diesel costs are higher than ever, the American Power Group Inc. is optimistic that its dual-fuel strategy for heavy-duty trucking will raise interest among owner-operators and small fleets.   The $25,000 improvement swaps out one of a Class 8 ...