Just bought a 2024 2500 with the 6.7l Cummins. It’s my first diesel.
It has 4000 miles on it, question is what are your thoughts on what oil to use,
Manual says 10w-30 rotella above 0* ambient temp. ( No mention of synthetic blend or full synthetic)
And 5w-40 rotella full synthetic for below 0*...
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