- Jul 3, 2005
They don't care about humidity, or wind chill. On a side note some older cars do run better in high humidity. BTW run a 5W20 and sleep well at night.
Originally Posted By: 1999nick
Correct me if I am wrong, but I don't believe that mechanical devices care about the humidity. I don't believe that an 8 or 10 degree higher temperature will much affect oil, compared to 100 degrees we see here in Tennessee.