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  1. RAM 1500 Eco Diesel Engine Oil

    RAM 1500 Diesel Maintenance
    I recently purchased a new 2015 RAM 1500 Eco Diesel Truck and noticed in the owners manual it specifies 5W-30 engine oil. I would like to use the Mobil 1 Turbo Diesel Oil 5W-40. I live in the deep south so it get's pretty hot here but not to cold. Do any of you know any reason why I can't change...