Does it make a real difference if one oil runs at a lower temperature in your engine compared to another? For example, if say when you use Mobil 1 in your car and during typical driving, the oil temp reads 230F, and then you switch to say a Pennzoil product and your oil temperature reads consistently lower, like 210F. What does that really mean? Is the Pennzoil product better for your car because it operates at a lower temp? Does it mean your engine will wear less or the oil will last longer?