Originally Posted by wstar

I'm sorry, but there's no way that's from a little extra heat in the engine. More than one issue is being confused in this thread, repeatedly. What you're describing sounds like VDC to me, which is a whole separate issue. Even if our engine was at half its potential power due to some monumentally bad tuning at higher temperatures (and it's not...), it would still have enough power to get up and go in traffic.