bwalker said:
I wouldnt call that bias. I would call it doing research and buying the product that performs best for your needs.
I have done the research and event tested Amsoil. It was mediocre at best.
BTW are you a amsoil user or salesman?
I started out as a skeptical user about 25 years ago. I was fully brainwashed into the, "you absolutely have to change the oil every 3-5000 miles, and the engine must be rebuilt every 100,000-125,000 miles (if the engine last that long)" Now I get rid of "dino" oil in everything I own and use predominatly Amsoil, which has never let me down. Amsoil used to(maybe still does) sell other home products that I consider junk, but I have reaped the benefits of the lubricants and will continue using them until one of my engines fail due to an oil related problem, or something significantly better comes along.
BTW, If you are a human being, you are biased. It comes with the territory. Scientist, and polititions can look at exactly the same data and argue different conclusions from the data. Take republicans and democrats: they could not agree on the color of poop.