BLUE DEVIL TRANSMISSION SEALER

The sealer stop the leak for a short while but like it says on the bottle it cannot fix a Mechanical fault. It turned out the bolts on the gearbox had gone loose because the rubber gasket had shrunk with age. Had the gasket replace along with a new filter and all ok now. The jeep is 23 years old though.

my sons' car had a major gearbox leak..a few days after using this it seems to have stopped leaking completely.

All fine thanks

So I had a leak in my torque converter. I had been recommended this so I put half the bottle in my gearbox and little over a week later the gearbox failed resulting in me having to buy a refurbished box at £1000. Do not put any additives into your gearbox.

I had a slow leak on my Volvo V60 Automatic gearbox, about 1 litre every 4 or 5 weeks. I added Blue Devil and it made it much worse, effectively dumping all oil in a day or so. Beware! My car is currently in a Car Garage getting fixed...

Does not do as advertised. Do not buy