The tranny used to grind into third very rarily in warmer weather, like maybe 1 time for every 100 shifts into third. Now with the unusually cold weather in my area (below freezing), it does it more often and usually stops after driving for a while (once its wamred up a little I guess). Its a 91 notch and only has 108Kkms or about 65-70Kmiles. Does it sound like the third gear synchros are about to give in? I've heard some people say some t5's do this and dont worry about it. Other than that the tranny shifts smooth as butter.