I am not convinced that Amsoil is worth the premium that you pay for it. I am not saying it is bad stuff by any means, I would just like to see a comparison of oils that is not done by or paid for by Amsoil. Google searches just turn up a bunch of different independent dealers that have the same test data.
1997 Taurus GL - 3.0 OHV - The Project Bull
1998 Taurus SE - 3.0 OHV - SOLD
1997 Taurus GL - 3.0 OHV - SOLD