While the list of car brands that still use diesel engines in 2025 is increasingly small, diesel still dominates when it comes to heavy-duty trucks. There are a number of reasons why diesels are the ...

Most people pump diesel without thinking about what's in the nozzle, but the stuff has a long journey before it hits your fuel tank. Diesel doesn't magically come out from underground — it's ...

Scientists are exploring a surprisingly simple way to clean up diesel engines: adding tiny droplets of water to the fuel. During combustion, the water rapidly vaporizes, triggering micro-explosions ...

We put the Mahindra XUV 7XO diesel automatic through our instrumented real-world fuel efficiency test. Tap here to know about Mahindra XUV 7XO mileage.

Explore the 2027 Cummins X15 diesel engine, delivering up to 605 hp and 2,050 lb-ft of torque. Learn how the new 48V alternator and electric heated aftertreatment system meet 2027 emission standards ...

2027 heavy-duty engines are still a couple of years away. But the American Petroleum Institution is already hard at work on the next generation of oils that will lubricate them. New EPA 2027 emissions ...

When it's time to buy a new vehicle, you may find yourself at a crossroads wondering whether to go with a standard gasoline engine or a spiffy diesel variant. Diesel engines are known far and wide for ...