as Craig has mentioned to me the transcooler only works whilst in "Drive" so whilst hammering around in manual mode the fluid in the torque converter just gets hotter and hotter, which pisses me off cos whats the freaken point in that, i hate auto's and driving it in manual mode seems like its a bad idea.
so basically every now and then whilst driving in manual mode u have to flick it in drive to let the fluid circulate and cool down, i wish there was a better solution!!!!