Over-all, additives perform synergistically Along with the transmission fluid in order that the system and its elements final as lengthy as you possibly can.  Understand that all seals at some point wear out totally and need to be replaced. Even so, transmission additives can delay the necessity to try this. https://rafaelnrpmh.blue-blogs.com/41253225/the-definitive-guide-to-gearbox-oil-treatment