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.
Rated 5 out of 5 by JMaCook Dirty Oil Only 2000 Miles Hello Mobil 1, I have a 2003 Nissan Altima 2.5 S and it has 176,700 miles on it. I have kept my car's oil change regularly at 3,000 miles. Recently I decided to switched to synthetic oil and use Mobil 1 High Mileage 5W-30. I have read a lot of good remarks about it. Your support staff recommend that I do a staggered oil change since my car has never used synthetic oil before.