To begin, let’s take a quick look at what old and new oil looks like.
The spot of oil on the left is the old oil from my wife’s Explorer, would you believe that it only has 1500 miles on it? Now normally you should change your oil at the 3000 mile or three months (5000 for synthetic oil) mark but I just put in a new motor and the first few oil changes need to be done at different intervals due to the break in of the motor. Still, you can see a major difference in the oil from new to old. Think of the discoloration as dirt in your motor, not good, eh?
The spot of oil on the left is the old oil from my wife’s Explorer, would you believe that it only has 1500 miles on it? Now normally you should change your oil at the 3000 mile or three months (5000 for synthetic oil) mark but I just put in a new motor and the first few oil changes need to be done at different intervals due to the break in of the motor. Still, you can see a major difference in the oil from new to old. Think of the discoloration as dirt in your motor, not good, eh?