[Twerp]

Okay, so here are the symptoms...

Recently, I've been having some issues with 5th gear in my truck. After coasting in neutral, it hasn't been re-engaging smoothly. Generally, at speeds below 40mph, it will go into gear with a little pop. No big deal, but maybe a little more resistance than I can recall from before. At higher speeds it will grind a little before going into gear. It seems to do fine if I put it into fourth and then to fifth before releasing the pedal. This is a recent problem that has popped up in the past week. I've also noticed that it tends to be worse as I get farther along my journey, but it's not much of a problem when I first start off. Also, on cooler days, it isn't as pronounced. I think it might be heat related. I got my transmission fluid changed about 2 months ago. I wonder if they put the right oil weight in or something like that. I hope I haven't worn out some part of my transmission by doing pulse and glide. With Toyota's legendary reliability, I'd imagine that it would take more than pulse and glide to wear out a Toyota manual transmission.

So, are there any Toyota transmission specialists out there that can advise me? Is it a matter of switching fluid weights? Checking fluid levels? Waiting for cooler temps to do p&g? Or could this be a serious problem in the making?