Philip Lange/shutterstock.com Diesel engines run on highly compressed air and fuel. The turbocharger on a diesel engine increases airflow via compression so more can fit inside the combustion chamber. This produces more energy for faster acceleration, fewer emissions and better fuel …

Ensuper/shutterstock.com All motor vehicles need oil. It adds a protective coat to metal parts to reduce wear and tear and disperses heat to ease friction. Oil is more vital to diesel engines than gasoline engines because they operate under more pressure and produce soot. The excess …

Warut Wetsanarut/shutterstock Unlike gas-powered vehicles, diesel engines pressurize fuel using direct fuel injection systems. It’s then sprayed as a fine mist in the combustion chamber, making it easier to burn. This configuration makes diesel more efficient than gas, extracting mor …

coloritmail/shutterstock The fuel powering your engine needs air and heat to combust, which releases mechanical energy that spins the wheels forward. But where does the heat come from? In diesel engines, glow plugs heat the incoming air and fuel until it’s hot enough to burn, while g …

Brandon Woyshnis/shutterstock The Detroit automaker has become one of the leading manufacturers of high-powered diesel engines in the U.S. The company’s Powerstroke engines currently dominate the market, creating the number-one selling line of pick-up trucks in the country. So, what …

r.classen / Shutterstock.com Today’s diesel fuel contains far less sulfur than it used to. Why? Modern heavy-duty engines have emissions-reduction technology that’s vulnerable to sulfur. They use complex systems to limit their environmental impact, and using sulfur on a new diesel is …