Some clarification: I have an external HDD that gets it power from the USB port. Even if I turn of the computer, the HDD won't shut down, because there's power-off charging on that port. This is my only USB3 port, so using an other port is not an option.
Mobil 1 Extended Performance synthetic oil is recommended for oil change intervals up to 15,000 miles or one year, whichever occurs first. However, if your vehicle manufacturer recommends an oil change interval beyond 15,000 miles and Mobil 1 Extended Performance meets the performance level specified, you can be assured that Mobil 1 Extended Performance will go the distance.
1 We recommend replacing the oil and filter every 5,000 miles or four months. 2  Synthetic oil (versus regular) is cost effective. Itâs lubrication properties are better and you will not need oil changes as frequently.  If you notice any fluids in your driveway, you should get your vehicle inspected immediately.