Slow mustang??? trans probs

[Rol224]

My cars throttle response is amazingly slow all of a sudden, and climbing through gears goes slow. My transmission has felt like it is gently vibrating through 3rd gear for about a couple weeks. I checked my oil and such and cant find anything abnormal. I had a oil change a thousand miles ago and they switched me from 520W to 530W or visa versa (they told me 99 and newer fords and hondas use special oil because of emissions). Anybody have a clue?


Thanks

 

[dastang2]

i hear bad things from your kind of tranny and torque convertor, i think the convertor is staying locked or something