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Re: Changing Oil Viscosity: Myth or Fact?
Posted to Technical Theory Forum on 9/2/2007

Ford WSS-M2C153-H and WSS-M2C930-A (SAE 5W-20)

WSS-M2C929-A (SAE 5W-30)

Those are the specifications I am aware of for a late model Ford. Apparently the Ford specifications are somewhat dependent on viscosity. So I retract the part about it probably meetin... Login to read more.