quote:Also, take a look at the MSDS for the Honda Z1. "Refined Mineral oil" 80-85% Hydrocrack and Hydrotreated paraffinic oil" Flash Point 186C min.
Compare to AMSOIL. 100% Synthetic Universal Automatic Transmission Fluid .
Flash Point 220C.
Tim, you seem to operate under the assumption that its all about basestock. Honda may utilize the stated base oil due to their inherent ability to better handle and additive package. Perhaps Honda has identified a specific friction modifier that wouldn't stay supspended in 100% synthetic basestock.
quote:So the AMSOIL uses a much better chemical synthetic base oil and a much higher flash point than the petroleum nonsynthetic base Z1. I know which I would rather use. No wonder those that have used both, pick AMSOIL.
Maybe Amsoil needs a higher flashpoint to compensate for missing friction modifier. Please list those that have used both. They way the statement reads is that it is all Amsoil users.