I saw improvement in the transmission; before it would engage first and sometimes third with a thud, now it does it rarely and only in first gear. The way I see it, I will take a while to lower the transmission; it has been given an extension of time.

Although I have bought it a while ago, I used it for the first time since then.

I used it in a Toyota Corolla with a 6-speed manual transmission and with 250,000 kilometers on the odometer.

What I notice is a softer and at the same time a nicer feeling in the car's gear shifts.

I haven't made any changes to the car's engine oil as I bought it used with the same engine oil that I bought the car with, and I simply poured this product in.

I haven't used it with new engine oil from the beginning.

As a first impression, it left me with a good impression.

I will come back in the future with updates.

I put it admittedly with some reservation, at first (and it is logical) I didn't see anything but after a few hundred kilometers I understood the substantial difference, the gearbox became a little tighter and the shifts more solid while it stopped a slight squeaking that I sometimes had when downshifting from 3rd to 2nd. Of course, I will put it again in the next oil change.

Overall, the transmission is more "tight" compared to most cars, but after adding it to the oils I changed, the gears shift more easily. I will use it again.

Problem with the gearbox in Opel Corsa d, it did an excellent job and the gears shifted very smoothly.

Immediately I noticed a sweeter performance and as the kilometers pass, I believe I will have even greater improvement!

I used it with Moly oil. Overall satisfied with the result but not sure how much of a significant role the additive played.