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 an Oil Pump?

By Jessica Reed
Updated May 17, 2024
Our promise to you
About Mechanics 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 About Mechanics, 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.

An oil pump is used to provide oil to the moving parts of a machine. The oil helps lubricate the parts so they will turn smoothly with little resistance or friction between them. It not only makes the machine run smoother, but extends the life of the machine's parts. It also ensures that the parts don't melt or become warped from the heat generated as they move. The most commonly known example of an oil pump is located in the internal combustion engine of a car.

Near the bottom of the engine is the oil pan which stores the oil for the oil pump to draw from. The oil pump is mounted inside the oil pan and connected to the engine to ensure they turn together. Since the oil is pumped under pressure, a sensor is used to monitor how much pressure the oil is under. If too much or too little pressure is created, the sensor will cause a warning light to appear in the car. This warns the driver that something is wrong.

The oil pump must be taken care of for the car engine to keep functioning properly. This includes getting an oil change roughly every 3,000 to 5,000 miles (4,800 to 8,000 km) depending on how often the car is used and the manufacturer's recommendations. It's also important to check the oil level of the vehicle on a monthly basis to ensure it has enough oil.

To do this, the owner removes the dipstick located in the engine and wipes it off with a paper towel. He then proceeds to dip it back into the holder and pull it out again. A set of lines on the dipstick mark where the oil level should be. If the oil level is below these lines, more oil needs to be added to the car. Oil can be purchased from the store to add to the car by hand.

Bottles of oil come marked with a number, such as 10W-30. This number expresses the viscosity of the oil, or how thick it gets under certain temperatures. Oil needs to maintain a certain thickness that is not too thick and not to thin to function. The number beside the W expresses the viscosity of the oil during the winter when it is cold. A lower number means it will flow better under cold temperatures. The second number expresses how well the oil will flow when it is hot.

About Mechanics 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
By Almita — On Jul 28, 2011

I think I damaged my oil pan. I went up a bumpy driveway and when I got to the top, I heard a crunch and the check oil light came on. There were pot holes everywhere and I managed to drive home safely -- but I know that it's probably going to be several hundred dollars to get it fixed.

I'm not an expert, but I know a little about cars. Can anyone tell me how to change an oil pan?

About Mechanics, in your inbox

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

About Mechanics, in your inbox

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