We've currently got a 2004 Limited with 181k on it and it's great, but we were looking to upgrade to the "facelift" version of the 4th gen. We found a nice looking 1 owner sport with only 110k for a good price. The only problem is that the owner had an independent shop flush the trans about 6 months ago. How terrified should I be of this? They did not use toyota fluid and he did say they used a machine to "push" the fluid through.