Oil vesocity for 6.7 powerstroke
Looking at the specs for the 6.7, it says 10w30 for normal use. Also see that 5w40 synthetic can be used in severe duty apps. Has anyone switched over to 5w40 for normal use? Does it hurt to do so? I ...
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I just use the 10W30, and let the truck tell me when it wants new oil. The truck's sensors and computers calculate the oil change interval based upon temperature, viscosity and load.
