I can attest to three successes. My brother introduced me to this product which he used successfullly in his Peugeot. I used it in an Isuzu Trooper as well as my son's VW Fox. In all three cases, there was no freon left in the system so removal was not an issue. The trooper worked for a summer and then cool air dwindled so obviously there was a leak but I can charge it annually for less than 20 bucks. I can do this a bunch of times before I reach the cost of repair. I believe the kit includes oil which is installed prior to the R134.