It depends on why it is leaking.
Most stop leak additives do nothing but empty your wallet. Replace the gasket that is leaking.
you must have the leak stopped! it's more than likely either the front or rear seal!
how do you stop oil leaking from a 2000 sportster primary cover
it is going to depend on where it is leaking from
leaking lines. have just replaced lines but never a trany yet
No.
The way you stop your water pump from leaking on a Ford Transit Lorry depends on why it is leaking. The most common fix is to replace the gasket on the water pump.
If a battery is leaking, then it needs to be thrown away. The acid leaked can be very dangerous.
Gland packing is tightened to stop a gland from leaking. As the gland is tightened, the packing is pressed tighter and the gland will stop leaking.
Transmissions have lines that run from the transmission to the oil cooler in front ot the engine. Most of the time, it's made into the radiator. These metal lines sometimes rub against the metal chasis, causing a hole. It may also be corroded from a leaking battery case. Remove the battery and find the leak. It can be repaired easily with a rubber hose made for transmissions and clamps.
Throw it away like I did. It totaly stopped leaking.