Volvo's D13 engine cuts NOx emissions by 80%, aligning with 2027 EPA standards for cleaner, efficient heavy-duty truck ...

The new hydrogen engine, while still in development, has thermal efficiencies above 60 percent. In comparison, diesel engines ...

As 2026 diesel truck builds gain momentum, creators like WhistlinDiesel are putting platforms through extreme off-road stress tests that reveal a stark truth: the most powerful engine isn't always the ...

Several of the world's largest truck makers are switching away from diesel. The replacement comes in two forms, and the race ...

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The Knoxville, Tenn.-based National Transportation Research Center will receive $500,000 in federal research funding to test the Legacy rotary engine, a new type of rotary diesel engine for the ...

One company thinks it has the answer for truck operators that want to use natural gas but are concerned about range issues: a dual-fuel system that can be retrofitted to existing diesel engines.

Advances in diesel diagnostic tools are enabling faster, more precise engine troubleshooting, reducing downtime and preventing costly failures. These systems now integrate real-time data, ...

If you own a truck with the 6.6L Duramax diesel, you already know what it costs to feed it. The engine makes 470 horsepower and 975 lb-ft of torque, and it will haul just about anything you can ...