It's been dubbed the "diesel dupe". In September, the Environmental Protection Agency (EPA) found, external that many VW cars being sold in America had a "defeat device" - or software - in diesel ...

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 ...

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 ...

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, ...

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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.