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.
How long can you go between oil changes with synthetic oil? I have a Toyota Solara that I bought when it had low mileage on it. ( It&#39;s a great car ) I drive long distances with it and have put probably thirty thousand highway miles on it since I got it. It&#39;s in the high fiftys now.