Hi Jester. My fluid stayed at similar levels, when cold or hot. I'm wrecking an '07 TRD (SL) in WA (should be finished by 27.08.14), so there are still some original TRD parts available ... radiator, pipes, etc. If you wanna send me an email bid for any of the parts, read points 1 to 4 at the bottom of my first post, post #1 (current bids for each part are at post #10) ... http://au.toyotaownersclub.com/forums/topic/48118-trd-wrecking-in-wa/ Craig