I tried a 50/50 mix of the FULL synthetic Trick Shift (not the regular type-F stuff) on my last change and it made a very slight difference in the feel of the ATX up/down shifts. I will be going to a 100% Synth. trick shift this weekend, but it's only $4 a quart. I don't think you'll feel $75 worth of improvement with the redline fluid in a stock tranny, maybe if you had a hot shift kit or something...
