I wanted to clarify about the oil loss. I see no leakage, so the motor is consuming oil somehow. Do HM oils offer any benefit to this type of oil loss?
I am new to the board, so I apologize if this topic has been covered. I couldn't find anything via the forum search, so here goes.
I purchased a 2008 Pontiac Gran Prix with 3.8L Series 3 motor in October of 2013. It had 57k on it when I bought it. Since then I have put about 6k on the car. At...