Fluids play an important role in automobiles. Having proper fluid levels helps in the smooth functioning of parts, fuel economy, and longevity. 

Fluids like engine oil keep the engine components lubricated and smoothly in motion. There are several types of fluids used in vehicles. Some of them are engine oil, transmission fluid, differential fluid, brake fluid, power steering fluid, etc.

A few signs your car's oil needs changing:

• Engine Noise and Knocking
• Oil Smell Inside the Car
• Exhaust Smoke
• Excessive Mileage
• Dark & Dirty Oil