Make sure you add Fuel Additive to the engine and fuel system in your 2021-2022 Jeep Gladiator JT 3.0L EcoDiesel at every fill-up. In addition to lubricity and cetane enhancers, some additives are designed specifically for cold weather to protect fuel and reduce fuel gelling. Most additives are specially formulated to reduce smoke, improve engine performance, as well as clean fuel and engine components. Shop today and find the additives you need for your vehicle from XDP, Lucas Oil, FPPF, Hot Shot's Secret, Stanadyne, and more!