For Automatic Transmission gear only.
Not compatible for manual transmission nor CVT.
My personal review;
I myself did not know whether to trust the product or not as I will only sell product that I trust.
So, when I tried on my myvi which has gear slip symptoms, I was very very VERY happy with the result. Immediately no more gear slippage, smoother gear change and feel more ‘oomph’ from the gear when driving.
Tested on Myvi 1.3 1st model with 200k++ mileage.
Works wonders! Will use this on my other car as well.