Review on Bars 1400 Transmission Repair 16 Fluid_Ounces by Chris Jens

I have a 2004 Mazda 3 that had a rough shift from 1st to 2nd. I just flushed the transmission oil, so I wasn't sure how much weighted clutch material I had removed from the system. It also appears that Mazda issued a TSB on my car in 2005 stating that the car was not shifting properly. However, after draining a small amount of fluid from the gearbox and adding the entire bottle of gearbox repair, the shift harshness almost completely disappeared. Definitely recommend! Will be updated in future if something goes wrong.