A little background might help. I am looking at maybe buying a 1994 Concorde with a 3.5 engine. The car only has 158,482 kilometers and is a country car so it got my attention. It is a private sale and the vendor stated that the transmission "slipped a bit" [his words] but claimed that the Lucas goop made it all work just fine. Now I have little to no faith in any type of "liquid repair" but I was wondering if the fact that this stuff seemed to help could serve as an indicator of what the actual problem is/was. Any information would be appreciated and useful. Thank you all in advance.