Lucas 10009 Transmission Fix 24 oz.

Have an abused '03 impala (130k+ miles) that started hard shifting/slipping. Turned out to be a sticking/worn valve. Removed 48 ounces of fluid and replaced with two bottles of this Lucas treatment and the problem has yet to return and it has been a 2 months and 4,000 miles. I also just changed the trans fluid and filter (adding a bottle of this treatment to the replacement oil) and all is still well.

I have the notorious 01M transmission problem on my vw jetta. It sticks in gear and wont upshift. this lucas product made the problem worse even after the trans ecu was reset. I have to say that lucas makes fine products and it seems that it is just in this case that it wont help at all.

My daughter has a 1997 Ford Escort with automatic transmission. It was starting to hard shift frequently. We drained the old transmission fluid and added a bottle of lucas conditioner. It eliminated about 90% of the hard shifting. Highly recommend