So I have a recently acquired a 1992 900s automatic and have noticed the shifting isn't all that smooth. A friend highly recommend Lucas Transmission Fix. so I was wondering if any of you guys can confirm the lofty reviews I've heard of the product but mostly I am wondering where my transmission fluid dipstick is to add the fluid. All I see under the good is a "gear box oil" dipstick at the front of the car, is this the correct port or should I be looking elsewhere?