We are transmission oil suppliers and a wholesale distributor. As automatic transmissions become more complex, there is a need for more technologically advanced fluids to ensure vehicle reliability. Getting the right oil for your car is key to ensuring your transmission operates as designed, and that you get a smooth driving experience every day. MAPCO offers a range of automatic transmission fluids for your car's requirements, providing you the piece of mind that you are selecting the proper oil for your vehicle. Our transmission oils are a technologically advanced, low viscosity formulation specifically designed to deliver maximum fuel efficiency for modern automatic transmissions. They are blended with premium base stocks, and include enhanced friction durability for smooth transmission performance. Transmission oils serve as the lubricant for your vehicle's transmission. Low power-steering fluid levels can cause your transmission to run hot, which is why it's crucial to top them off. The fluids in your car are essentially its lifeblood, and your vehicle's components require different fluids to function as intended. ATF does a lot for your transmission. This includes responsibilities such as lubrication, fluid pressure, cooling, oxidation preventative, gasket conditioner, anti-rust measures, and more. We not only have a transmission oil manufacturer in Chicago, but the highest quality of oils and the best prices.