I just got my oil change and the mechanic said he put in 6.1 quartz of oil but when he went to check the oil level it just barely passed the minimum amt line. When I got home I checked it myself and couldn't really tell where the line reached on the dip stick myself. Is new oil really light that you can't tell or did the oil go off somewhere else? I added 1/2 a quart just incase but still coudn't see the oil level on the dip stick. When I wiped on a paper towel, there was some oil. Should I be concerned?