I bought a new 2025 Ram with the SO Hurricane engine in December. The recommended oil is 0W-20 but I have read some articles that suggest that the 0W-40 that is required in the HO engine is the way to go. I drained the factory fill and replaced with 5W-30 for the summer but am thinking about what I will do for the fill this winter in Pennsylvania. 0W-30 for the winter, 0W-40, or the recommended 0W-20?
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