Transmission / Engine Gets Tired Fast.... Or Is It Me? Options

[tomazws]

I have a problem with my car.

Usually, when I take off from a complete stop, I.... well... You know what, I don't know how I accelerate, it became natural to me to a point I stopped thinking about it, but I definitely know that I CAN take off with the engine running at 500/600 RPM with no rocking or any problem.

But the problem starts coming after 30 minutes or so of stop and go driving. It feels like my car doesn't want to take off anymore. The engine responded with some rocking in its bay. It feels like my car has gotten lazy, or gotten tired or something. The car seems like, it wants more gas in order to take off from a complete stop. It made me look at the RPM gauge again, it made me break my natural habit, it made me start thinking about how to accelerate again. Fine, the engine wants more gas? I give my car more gas, I push the RPM to 1K, while inching the clutch slowly towards myself... The engine still rocks, why? Do I have sticky tires that they're super glued on the ground or something? Fine fine fine! More gas then, and push the RPM to 1.25~1.5K. The engine, seems to be finally satisfied with the gas I'm pushing in, while my flying wheel is shaving the hell out of its life, the car moves. It takes off.

WTF is wrong.


Please help