Answer
Dec 10, 2025 - 05:19 PM
For the Sinister Diesel Coolant Filtration System on a 2019-2024 Ram 2500/3500 Cummins 6.7L, it’s recommended to replace the coolant filter after the first 500 miles, again at 1,000 miles, and then with every subsequent oil change. This routine maintenance helps maintain superior coolant purity, reduces abrasive particles, and safeguards the engine’s cooling system, ultimately enhancing durability and preventing premature wear for your Cummins-powered Ram.
