Amsoil Synthetic Oil Change, Extended Drain Intervals Do you change your motor oil every 25000 miles? With Amsoil Synthetic Oil 25000 miles is the norm. Oil changes save you money and time. Increase cars performance.
Video Rating: 5 / 5 – The benefits of Royal Purple high performance synthetic engine oil are well known, mostly decreased friction resulting in increased power and less wear and heat. Recently, they’ve been touting increased oil change intervals thanks to the oil’s ability to resist breakdown. However, they realized normal oil filters are not up to the task of an extended oil change interval. We cracked one open and compared it to a regular filter to see the differences for ourselves.
Video Rating: 4 / 5

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