Flush the contaminated fluid in your 2018-2021 Ford 3.0L Powerstroke and top it off with new brake fluid. Brake fluids are available in DOT 3, DOT 4, DOT 5, and DOT 5.1. DOT 3 and DOT 4 are the most commonly used brake fluids. DOT 3 is compatible with DOT 4 brake fluid however DOT 4 offers a higher boiling point. Brake fluid can eventually start to absorb moisture from the air, even though it is a closed system. Your braking performance will suffer as a result of this water contamination, as the boiling point of the brake fluid lowers. Although brake fluid is sometimes one of the most overlooked fluids, brakes are one of the most crucial safety features of a vehicle. Many manufacturers recommend replacing the brake fluid every 2-3 years or at specific mileage intervals. It is very important to follow the manufacturer's recommended service schedule as well as testing your brake fluid occasionally. XDP offers brake fluids from the top brands such as Lucas Oil, and more!