I do know that it is an SOCH. I do not know what specific auto tranny is in them...even though I have one. <img src="/forums/images/graemlins/ignore.gif" alt="" /> As long as you keep the engine oil and tranny fluid changed, then you should be good to go (assuming there is no current problems) for a long time...I know some people have 200,000 miles on their Zus, me, I plan on going for 300,000!!! <img src="/forums/images/graemlins/shiner.gif" alt="" /> Oh yes, there is the infamous valve tick that starts around 90,000 miles...if you keep up with the oil change and use slightly thicker oil this won't be a prob.