Originally posted by Kremithefrog: Not available locally here, so add in shipping cost. Also add in the fact that no matter what they say or what an analysis says, I'm not gonna leave my oil in for 15k miles. There was a site comparing what is in each oil, and I believe they showed something in Amsoil that is added that helps get it to last so long, but the thing that is added can also end up staying in your engine or something. And of course there's the amsoil web site that "proves" it being better than all other oils. Also mobil1 makes ATF fluid, which I use. And when wal-mart has the 5qt jugs, it's only $3.78 per quart of mobil1, and it's right there at the store, so no shipping cost. I guess if you feel safe with keeping the oil in the car for 15k miles, then it's worth it, but most people aren't into that.
Well, KTF, I'm no apostle for Amsoil. All of my posts regarding Amsoil (past and present) have been intended to share my 16 year's worth of experience with Amsoil synlubes. Nothing more; nothing less.
My car is my car; your car is your car. My car will run Amsoil for the foreseeable future. Whatever your car runs is your call.
Also mobil1 makes ATF fluid, which I use. And when wal-mart has the 5qt jugs, it's only $3.78 per quart of mobil1, and it's right there at the store, so no shipping cost. I guess if you feel safe with keeping the oil in the car for 15k miles, then it's worth it, but most people aren't into that. 
