When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Problem is you never read the information on the Lucas bottle. It is designed to free up sticking internal valves and free up internal leakage, not external.
If you want to stop an external leak, buy an external p/s leak treatment like White Shepherd.