My apologies if this is all really stupid, but i just checked my oil and its near the low dot. The car is at 5,000 miles and I had the oil changed at the dealer ~2 months ago... So since its low, I just figured I'd add some more oil. I have to use the same kind of oil they put in on the last oil change correct? Does anyone know what oil the dealers use? And how will I know how much oil to add without overfilling?