If you are really interested in what makes Amsoil one of the top oils available here are some places to research.
1. Research their scores on API tests and how those scores compare to other lubes. The results are published so they are available to any one interested.
2. Research the company, the facilities and their mission statement.
3. Research the equipment they use to develop, test and blend the finished products.
4. Research Amsoils firsts as related to the synthetic lube industry and the influence they have had on the entire field of lubrication.
5. Base opinions on the scientific facts and company facts not on hearsay, and unproven rumor.