ok i am having an issue with my trany when ever I rev up the engine up to red line and shift from 2 to 3 it grinds a little. It only does it if I try to do a quick shift, if I do a normal one it will not do it. what could this be I have a friend that knows lots about hondas and he tell me I have to change the trany oil and it will stop. is this true or is it that my syncronicer mess up. 
