Well...that's a fair request, and I"ve attempted to locate and provide a link to the report I relied upon to make that comment....
...unfortunately, I've apparently lost my resource. My laptop (otherwise known as my "brain") was recently lost in an accident (water sprinklers flooded it thru an open window) and the harddrive cannot be recovered. My new laptop (Windows-8... Yuck!) doesn't help me find the report.
PQIA may help. http://www.pqiamerica.com/
They provide tables of comparison between various oils, and their Mobil 1 chart indicates better NOACK testing results (volatility) for Mobil 1 than Amsoil . They don't list Redline I don't believe.
Here's a link that may prove informative: http://www.pqiamerica.com/March2013P...sallfinal.html
Anyway, my previous comment was indeed pretty anecdotal, and I was relying on memory more than recent lab result reports. I apologize.