is 5000 miles too long to wait for an oil change?

[HTM Yaris]

I find it interesting that Toyota will be switching to 10,000 mile oil change intervals . I'm willing to bet they will be using Amsoil or made by Amsoil .

If you do a comparison with Amsoil and Mobil1 like I did , you will come to the same conclusion that I did . At 5000 miles the Mobil1 was "black" while the Amsoil was still somewhat lucent . Visual inspection alone clearly (pun intended) shows that Amsoil is a superior product .

I change filter at 5K (Toyota) and my Amsoil at 10K .