Blue Devil Hydraulic Stop Leak (1 Gallon) - 2 Pack

Hydraulic systems that start dripping usually point to seals that have dried out and shrunk over time. Blue Devil Hydraulic Stop Leak works as a plasticizer that absorbs into rubber seals, softening and expanding them back to their original size and flexibility. This two-pack gives you two full gallons, enough to treat up to 40 gallons of hydraulic oil total.

What sets this product apart from generic stop-leak additives is that it contains no petroleum distillates, so it won't cause further damage to seals or system components. You add one ounce per quart of hydraulic oil into the reservoir and run the equipment. Most leaks seal up within one to two hours of operation as the formula circulates through the system and reaches every seal.

Whether you're working with a hydraulic jack, a log splitter, or heavier equipment, this approach saves you from the time and cost of pulling the system apart to replace seals. Two gallons means you can treat multiple pieces of equipment or keep a spare on the shelf for the next time a seal starts weeping.