Every car needs six essential fluids: engine oil, transmission fluid, brake fluid, coolant, power steering fluid, and windshield washer fluid. 1. Engine Oil: Engine oil, also known as motor oil, is the most vital fluid. Its primary job is to lubricate and protect your engine's components from overheating. 2. Transmission Fluid: Similar to engine oil, transmission fluid serves to lubricate your transmission. This fluid is usually a red color. If you notice the fluid status is low or contaminated, you should have it changed or flushed immediately. 3. Brake Fluid: Without this essential solution, your vehicle would not be able to slow down or come to a complete stop. If you start to notice a brake delay or unusual feeling with your brakes, you should first check your brake fluid levels. 4. Coolant: Engine coolant aids in cooling down your engine by absorbing excess heat and taking toxic byproducts out of the exhaust system. Without coolant, your engine would simply overheat. 5. Power Steering Fluid: The power steering fluid is a powerful solution that ensures you ride around smoothly. If your power steering fluid is running close to empty, your car's steering wheel will start to stiffen up, making it difficult for you to make turns. 6. Windshield Wiper Fluid: Windscreen washer fluid is employed to clean the windshield of your car. It is often overlooked, but it is crucial for safe driving. Without this liquid, you could experience trouble seeing through your dirty windscreen.