The Ford Barn - View Single Post - I notice my transmission leaking a little bit on the floor.

rotorwrench · 09-23-2020, 12:12 PM

Most additives for this purpose are based on rubber seal problems. The intent is for the additive to soften old hard rubber. It won't seal leaks where the rubber is split or deteriorated to much. It won't do anything for cork or paper gaskets. It's likely some form of solvent with a light oil like an emollient so it will have a tendency to thin the ATF until the solvent part of it finally evaporates out. Some would call it snake oil but it might help for a while.

Repairing the problem is what works the best.

09-23-2020, 12:12 PM	#4
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,440	Re: I notice my transmission leaking a little bit on the floor. Most additives for this purpose are based on rubber seal problems. The intent is for the additive to soften old hard rubber. It won't seal leaks where the rubber is split or deteriorated to much. It won't do anything for cork or paper gaskets. It's likely some form of solvent with a light oil like an emollient so it will have a tendency to thin the ATF until the solvent part of it finally evaporates out. Some would call it snake oil but it might help for a while. Repairing the problem is what works the best. Last edited by rotorwrench; 09-23-2020 at 12:18 PM.