Quote:
Originally Posted by matthewk
It doesn't exactly get hot in Pittsburgh and during the winter months they prob did you a favor. No harm done if the used 5-30 get over it.
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I suggest you read up on what the multi-weight ratings mean on oil.
The first number is only "cold" start viscosity of oil.. the second number is the viscosity of oil tested at 210 degrees. (hint: the engines normal operating temperature) Using the lower 30 viscosity oil will cause more wear to inevitably occur. So to say no "harm done..get over it" is not only wrong..its irresponsible