Prolong Super Lubricants PSL15000 Transmission Treatment, 8 oz

I had taken my manual Veloster in to get a new door after someone hit me in the parking lot. Once I got my car back it shifted terribly. As a side note I believe this was most likely caused by a technician at the auto shop I took my car to either hot running my car or driving it without knowing how to drive a manual transmission. The gear lever was very notchy and in sixth gear I had to slam it to even get it to go into sixth gear. So needless to say I was pretty worried about it. I had heard of prolong in the past and so I bought it and thought might as well give it a try. I put it in my transmission last night and after I got everything button back up a cycled through the gears with my foot on the clutch and then I took it for a quick trip down the highway cycling through all 6 forward gears and reverse. And I noticed an immediate difference now I'm driving it again today and it still feels better I think it feels better than it did last night so it seems like it may continue to improve my shifting experience. I'm very thankful that I tried this product and I suspect you will be thankful as well. As I'm driving right now cycling through the gears I'm noticing no spots where it feels like my lever is getting hung up I noticing no I'm hesitation as I fully engage the gear It feels more like it's getting sucked into place as opposed to having to force it into place

Like thier engine treatment it works wonderfully. I bought an older neglected Silverado and it had nasty dirty transmission fluid and wasn't shifting right. I put a new filter and fluid it it twice in a short period of time and was better but not great. I added this and it worked wonders. Used to not know whether to drop into 1st or 2nd sometimes and it would gradually slip into overdrive. No longer does that and you can hear it engaging into OD without hesitation.

I was a bit skeptical when someone referred this to me, but glad I took a chance, my transmission started shifting much more smoothly within a couple minutes from putting it in and driving around a bit.

This product works better than anything you have ever used

I put this in my 2015 Honda Accord V6 manual coupe (6MT) with 120k+ miles, to see what it would do. Most of the gears are pretty notchy on cold start driving, with 2nd gear crunching and grinding sometimes, and 3rd gear locking me out occasionally at higher RPM’s. I plan to add this alongside some Valvoline Synchromesh manual transmission fluid. For my FWD transaxle, it’s been known to be mildly over-filled, in order to help with harsh shifting on cold starts. I over-fill anywhere from ~2.7-3 qts (capacity is 2.5 qts), and it seems to help a bit. However, it takes nearly 15-20+ solid minutes of constant few shifting past 2500-3000 RPM, to get the gearbox/trans to properly warm up and smoothen out the shifts. All in all, it’s probably best to just go with a FULL synthetic GL-4 transmission fluid/gear oil. They tolerate high heat much better, and don’t shear down as easily, making them a good choice for extended service/maintenance intervals. I still add a bit of oil stabilizer or transmission fluid stabilizer, in order to help “condition” the trans fluid.

1997 Dodge Diesel...Seriously, we employee a master mechanic with 35 plus years of experiance. He erviced the transmission in my transmission, adjusted belts changed filters and flushed the system. he also put a shift kit in it. Nothing was working I was in the market to buy a new transmision. I have had a lot of luck in the past with Pro Long products so I asked him iif it would work. He said it might and rolled his eyes. I though what the heck I have nothing to lose and everything to gain for $14.00. So I bought a bottle. I put it in the transmission and in about 15 minutes it mad a differance in the lower gears. I then drove to Eugene and the worst thing possible to me happened. As I was going through the mountain passes between Grants Pass and Eugene I started losing the passing or high gear at 55 to 65 miles per hour going over the mountain. I mean nothing the transmission just started spinning and lost all power. I was supper bummed. When I got back from Eugene I parket the truck for the weekend. We were out of riggs and I had to drive to Cave Junstion so I got in my truck and headded to cave junction. No Joke the transmission works perfectly now. I dont know if its just how long it took or what ever but wow. Its like I have a new transmission. I had read that it can take a bit or it all to work out and in this case it did. So if you use it I would say just be patient. This stuff is with out a doubt Amazing. Another product I found amazing is Steel Seel for head gaskets just an FYI. That one fixed my Subaru and was recomended by our Mechanic.

Excelente

I had an fluid leak and I almost damaged my transmission. I fixed the leak and changed the fluid the first time but there was still slipping and noises, the second fluid change I used this and now it’s 90% better.

I hear everywhere that this product is simply the best additive that you can add to an automatic transmission to “Prolong” it’s life in a newer car and also for heavy mileage one.

Es una marca que ya conocia de hace muchos años y que los utilizaba con bastante frecuencia pero de repente empezó a desaparecer por lo menos aquí en México ahora ya casi no se consiguen en ningún lugar y mucha gente ni conoce la marca talvez es porque no son tan baratos sus productos pero valen la pena emplearlos ojalá que algún día regrese la marca a México

Helps with transmission shudder and smoother shifting for gms