Originally Posted by qweesy
all the mini cooper S guys have been running Redline 75wMTL for YEARS
I'd bet the idiot count for mini cooper S owners running unapproved redline fluid is closer to a couple hundred guys out of a total fleet size of 100K+ cars. That's maybe 0.2%, not exactly "all". A large percentage of these folks are still getting repairs under warranty. Please realize a couple misguided folks experimenting on the cooper forums don't speak for the whole owner community. This is exactly what happened on the Supra, Mustang and BMW forums when fools started promoting the incompatible redline fluids and trannys began dropping like flies in 5-7 yrs, shortly after warranty expired. History repeats itself and many refuse to learn from other's mistakes. BMW guys come to me to get Getrag trannys rebuilt after they do stupid stuff. The manfuacturer of these transmissions (Getrag) called out Redline and other non-approved lubricants as the culprit and the failures were clearly documented. You think you know more than the Engineers??? Do you have grounds to disagree with conclusions drawn on other forums where a community of folks with Getrag trannys learned the hard way over a decade?? Have you even seen a Getrag tranny inside? Most have no clue what is inside their transmission being damaged from improper fluid or abuse. All they know is the synchros shift more smoothly with certain lubricants, but that has nothing to do with lifecycle, corrosion, compatibility or wear rate. A tire wall will stop a car faster than the best racing brakes, but that does not mean tire walls are preferred for stopping. The objective when choosing tranny fluid should be to maximize lifecycle and overall performance. Shift feel is only one criteria. If quick synchro engagement were the only concern we'd all be trying kerosene or gatorade in our trannys.