Lubegard 19001-UNV Kooler Kleen Transmission Cooler Flush with 2-in-1 Fitting, 13.25 oz.

Worked great cleaned out the transmission cooler perfectly. Great price.

Disconnected cooler lines from transmission (GM 6L80 in fullsize pickup). First blew out all fluid with shop air. I used a length of clear, plastic tubing to go between the cooler line and my drain pan. The fluid came out the same darkened red color as what came out of the pan but nothing too dark nor at all thick, just "normal" fluid. I continued blowing shop air through the factory coolers (one in radiator and one in front of the radiator) and alternated from one line to the other a few times. Then I cut the little adapter off the end of the clear, plastic tube attached to the can of Kooler Kleen. The tube fit INSIDE the cooler line fairly tight. I started to send the Kooler Kleen into the line and thought not much was happening. I kept going and in a few seconds saw some darkish fluid coming out of the other line. Then it turned very, very dark and appeared very sludge-like for a few seconds. After this blast of dark sludge, the fluid coming out started to get more and more clear. I put maybe 2/3 of the can through one way and then reversed for the remaining 1/3. I finished by blowing shop air through the lines for at least 30 seconds in each direction and did this at least 3 times in each direction. I think the blast of very dark, sludge-like material that I saw coming out through the clear tubing is proof that this product did dislodge and flush out accumulated material. I feel confident in saying that all that sludge-like material can't help the function of the cooler. I can't say for certain that I improved cooling effectiveness but I feel better getting that junk out of the lines and coolers even if it makes no difference. I also like the idea of getting that much more brand new fluid into the transmission so that I'm that much closer to a 100% fluid change. Every little bit helps. I plan to use Kooler Kleen every time I change the transmission fluid in all my vehicles. It's not hard to use and doesn't cost much. Again, cleaner lines and coolers can't hurt performance and just might improve it enough to keep the fluid a little cooler which only helps extend fluid and transmission life.

If your looking to clean transmission cooler lines reasonably priced then this is your product works as described and would recommend to use.

We cleaned my transmission lines after rebuilding my transmission and product worked as I expected.

I used it to clean out the transmission lines and cooler for my transmission replacement. The product leaked from the connectors as I tried to flush it through. I was able to flush enough through and then used compressed air to blow it out.

Bought 3 cans thinking it would take a lot to flush cooler and lines. Only needed one can. It works. Cleans out all the old trans fluid.

The media could not be loaded. Works exactly as expected...I emptied a can through a differential cooler and got a lot of black grime and ferrous bits out of it.I also found some aluminum bits from the cooler manufacturing process I bet.After I ran all the foam through and the can was empty, I used the bottle upside down to push some air, then used a air hose for a while to try out the cooler.

You can always trust that Lubegard will deliver you a product that performs, ive used this on coolers and lines hard and soft, I've also used the product on power steering and oil cooler I swear buy this product even know the pn by heart