I pulled the dip stick out and wiped the oil off the first time, placing the dip stick back into the hole. Then I pulled the dip stick out again and checked that I had enough new oil. I made sure the oil level was in-between the two dots on the orange part of the dip stick end - preferably as close to the middle of the two dots as possible. If it was closer to the left dot, I would have to add some oil. And if it was too close, on, or past the dot on the right, I would have to drain some oil.