Six Essential Car Fluids and How to Check Them

Did you know that you can take control of the health of your vehicle when you know about the six essential car fluids? The service team at Gwinnett Chrysler Dodge Jeep Ram can help! It’s easy when you know how to check essential fluids in your car, and when to check car fluids. Those fluids include:
- Engine oil
- Brake fluid
- Engine coolant
- Transmission fluid
- Power steering fluid
- Windshield wiper fluid
Just follow our guide and you’ll protect the health of your car between maintenance appointments. It’s easy, affordable, and will help keep your car out of the repair shop!
How to Check Essential Fluids in Your Car
All six of these essential car fluids should be checked on a regular basis and replaced as needed or at intervals recommended by your manufacturer. Let’s take a closer look at how and when to check car fluids like windshield wiper fluid, brake fluid, motor oil, and engine coolant.
Note: Before checking the level of an essential car fluid (except transmission fluid), wait until the engine has had time to cool for at least 30 minutes before opening the hood!
Motor Oil
- Purpose of motor oil: Prevents friction between engine parts and regulates engine temperature.
- When to change motor oil: Every 7,500 to 10,000 miles or every six months.
- How to check motor oil: Find the dipstick underneath the hood. Insert it into the oil reservoir and check the level and consistency of the oil.
Brake Fluid
- Purpose of brake fluid: Transfers movement and force from the brake pedal to the braking system.
- How often to replace brake fluid: Every 30,000 miles or two years.
- How to check brake fluid: The fluid level should reach the marking on the side of the clear brake fluid reservoir underneath your car’s hood.
Engine Coolant
- Purpose of engine coolant: Optimizes temperature in your vehicle’s cooling system and engine.
- When to replace engine coolant: Every 50,000 miles.
- How to check engine coolant: The fluid level should reach the marking on the side of the engine coolant reservoir underneath your car’s hood.
Transmission Fluid
- Purpose of transmission fluid: Ensures fast and smooth gear shifts.
- How often to replace transmission fluid (for cars with automatic transmission): Every 30,000 to 60,000 miles.
- How to check transmission fluid (for cars with automatic transmission): Remove and re-insert the transmission fluid dipstick into the reservoir. Pull it out and observe the level of fluid. Check that the color of the fluid is a translucent dark red color. If you have a sealed transmission, you’ll need to bring your car to a Snellville-area service center.
Power Steering Fluid
- Purpose of power steering fluid: Ensures proper function of the power steering hydraulic system, which multiplies the force you exert on your steering wheel.
- When to replace power steering fluid: As needed, when your vehicle is difficult to steer or the power steering system needs frequent service.
- How to check power steering fluid: Find the reservoir under your car’s hood marked with a steering wheel or the words ‘power steering fluid’ or it might be a steering wheel symbol. Make sure the fluid reaches the marked level.
Windshield Wiper Fluid
- Purpose of windshield wiper fluid: Increases efficacy of your windshield wipers for clearer glass.
- When to replace windshield wiper fluid: As needed, when no fluid comes out of the sprayers on your windshield.
- How to check windshield wiper fluid: Open the hood and find the reservoir with a windshield washer symbol on the cap.
Learn More About Car Maintenance with Gwinnett Chrysler Dodge Jeep Ram
Learning how to check essential fluids in your car is just the beginning when it comes to ways you can help keep your vehicle in great shape! You can learn more when you read the articles in the Gwinnett Chrysler Dodge Jeep Ram service hub. Get your car maintenance schedule and more. And if you have questions about how to maintain your vehicle, stop by or contact our service department. We’re here to help!
More From Gwinnett Chrysler Dodge Jeep Ram
2026 Jeep® Cherokee Trim Levels
Although production of the last-generation Jeep® Cherokee ended after the 2023 model year, an all-new model arrives in 2026 with new amenities and technologies that will impress drivers from Atlanta to Roswell. The most notable update to the 2026 Jeep Cherokee is its standard hybrid powertrain and 4-wheel drive, which enhance the nameplate’s efficiency and…
2026 RAM 1500 Exterior
The RAM 1500 makes a bold impression on the streets of Atlanta. Boasting a sleek silhouette, dynamic detailing, and a wealth of expressive paint finishes, the 2026 RAM 1500 ensures you turn heads wherever you roam. Learn more about the available RAM 1500 bed sizes, dimensions, and color options with this exterior guide from Gwinnett Chrysler Dodge Jeep Ram…
New Jeep® Wrangler Configurations in Stone Mountain
The Jeep® Wrangler is synonymous with adventure, and the 2026 configurations are better than ever. If you want a vehicle with off-roading capabilities to explore areas outside Atlanta, one of the new Jeep Wrangler configurations will suit your needs, such as the Rubicon or Rubicon X. Learn about the new Jeep Wrangler models today,…