On the AutoRX web page, it states that it is important to change the filter at the beginning of the treatment to avoid "pressure leaks", but it doesn't really elaborate on this. I can guess what a pressure leak is, but where is it most likely to occur, and what bad things are happening when this occurs? Is it possible to get a pressure leak even with a new filter?
Also, is AutoRX used up as it cleans or does it continue moving stuff to the filter indefinitely? It appears a maintenance dose can last for an entire oil change, so perhaps it mostly acts like a 'street sweeper' moving stuff around.
Also, is AutoRX used up as it cleans or does it continue moving stuff to the filter indefinitely? It appears a maintenance dose can last for an entire oil change, so perhaps it mostly acts like a 'street sweeper' moving stuff around.