DR TRANNY LUBEGARD Automatic Transmission Instant Shudder FIX 6 Pack

It says specifically not to use with Ford type F transmission fluid. I believe this is because type F does not have any additives or friction modifiers, it's just mineral oil. That's supposed to make old Ford transmissions shift very firm. And this product is literally just an additive and friction modifier package. I have a 1977 Ford with an FMX trans. It was acting up, not shifting, getting stuck in second gear. Found a worn band, replaced it, everything else inside looked fine. Still the trans was really lazy about shifting. Sometimes would get stuck in second, most of the time did not want to upshift first to second. When it did upshift it was extremely slow / long shift. I bought these to use in other people's cars (modern cars), but I figured I'd be a guinea pig. To my surprise, it helped a lot. Shifts are still long, but much improved, and always on time. Never gets stuck in second. It took about one week of driving to fully get to this point. It has been a couple months since, and not getting any better, but also not getting worse. Again, it says not to use in Ford type F, and I understand why, but I took the risk and it paid off. I have used in other cars with mixed results. It is just oil, after all, it's not going to fix broken parts or severely worn clutches. But it does what I expect it to do. Will keep buying these.

I was skeptical at first. Used this with the Mobile one high viscosity transmission oil and took the shudder out of my Chevy Traverse. Shudder did come back after not happening at all on a cross country trip. I tried it again now a few times. Noticeable difference but shudder will not go completely away now.

2008 Expedition, 300k miles. I've had 3 tq convertors put in this truck, not sure what the problem is but they just won't stay together. First 3 were on the company dime, now I'm out of warranty and the shudder at low pressure cruising has returned once again. In my case, the trans works great, but cruising at 30-40mph, with very little gas pedal, it'll slip and shudder and the only way to get it to stop is to hit the gas and add a little more pressure to the system. This will get worse very fast if you just let it continue to shudder, so I'd quit using the cruise all together, and just stay vigilant on the pedal to avoid the problem on slight inclines at highway speed. I'm not quite ready to send her to the scrap heap, so I figured I'd give this stuff a try. I put one in thru the hose on the cooler in front of the radiator. No dipstick on this trans, so difficult to get to. After 2 weeks, no change, so after reading a few more reviews I added two more packs. With 3 in there and waiting another few weeks, it's really made a huge difference. I can leave the truck on cruise control at 60 again without fear of the shudder. Not sure how it works, but I think mine is probably one of the more severe cases, so if it can fix mine it'll likely help you too. Don't expect results over night, mine took over a month to "soak in?" but now it's working like a champ. Hopefully I'll never need it again, but I've got 3 left out of the 6 pack if I do.

I have used this product in any Honda vehicles. Once you get up there in miles the transmissions sometimes can get a little judder about 35-40mph. Time to change the fluid(3 times) and add this. This seems like some snake oil but in does work incredibly well. I know several mechanics and repair shops that swear buy it. I was extremely hesitant the first time I used it. I did not believe a tiny amount of magic fluid could correct the issue. I tested it on in a Honda CRV that had a bad judder in the trans. I added this stuff WITHOUT changing the fluid first and the judder/vibration went away. I drove it like that for a couple months and then decided to change the fluid. I did add this to the new fluid. Now 5 vehicles later it is still my go to solution.

It works!

It actually helped. There was a noticeable difference.

Good

This worked instantly! Took care of transmission shudder, and torque converter lockup at a complete stop that was killing the engine. I used this in a 2013 GMC Acadia. Also, it shifts very smooth now.

all good no problems thanks

yes. i added into my 4x4 360000km suv car and it worked very well . shifts gear bit better and smooth. cant make your transmission brand new but still worth using it. twi tube at a time.

shutter fix works good

Good fast

Our 2007 Toyota FJ Cruiser started to shudder, so we took it to a transmission specialist in our town. They changed the ATF and added this product. The shudder stopped. Now, 100,000 miles later, driving 16 months in Mexico, all over Canada & USA and up to Alaska, still no shudder. We change the ATF more often than needed, because we are full time towing a small travel trailer. We also change our own ATF because after having 2 places doing it incorrectly (One being Toyota, under-filling) and another over filling, we do it ourselves. This vehicle doesn’t have a dipstick, so it seems to confuse people on the correct process. We add this product with every ATF change. This high mileage truck drives and shifts beautifully