We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is a Diesel Engine?

L. S. Wynn
By L. S. Wynn
Updated May 23, 2024
Our promise to you
WikiMotors is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WikiMotors, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

The diesel engine is a type of internal combustion engine that was invented by Rudolf Diesel. He received a patent for the diesel engine in 1892 and the primary goal was to create an efficient alternative to the gasoline engine.

Both gasoline engines and diesel engines work by creating a controlled explosion in a sealed piston chamber. The small explosion rapidly moves the piston which in turn rotates the output shaft. In a gasoline engine, a mixture of fuel and air are injected into the chamber and then ignited with a spark created by a sparkplug. A diesel engine, on the other hand, does not rely on a sparkplug to ignite the mixture. Fuel is forced into the chamber and the high pressure generates enough heat to ignite the fuel/air mixture.

Some diesel engines rely on a glow plug to heat the chamber to minimize the amount of pressure required for the engine to turn. Without such an added heat source, the pressure required to achieve ignition (especially when the engine is cold) would be prohibitively high.

Diesel engines require diesel fuel for the combustion process to function properly. Diesel fuel is cheaper than regular gasoline because less refining is required. In addition, diesel engines are more efficient and therefore diesel cars get better mileage than their gasoline counterparts.

WikiMotors is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
WikiMotors, in your inbox

Our latest articles, guides, and more, delivered daily.

WikiMotors, in your inbox

Our latest articles, guides, and more, delivered daily.