I have an 82' Massey Ferguson 30B industrial. All of the loader cylinders were leaking pretty badly. I also had an issue where if I put much of an angle on my loaderit would just fold over to the dump position when I started pushing. I don't think this was caused by the visible external leaks, but either the bypass in the cylinder or my spool valve was allowing the fluid to return.My tractor holds 13 gallons of fluid and I added 3 gallons Lucas minus a small amount I added to the power steering. It has greatly reduced my leaks, although they still leak some. The problem with the bucket folding over was completely eliminated. I run out of traction before the bucket ever folds. I wouldn't say it's been a complete miracle, but it has really helped a lot. My only concern is that as it leaks out and I replenish it with new hydraulic fluid, will my issues return as the fluid returns to its thinner state. Only time will tell, but it could get expensive if I have to keep adding more Lucas.My dad also purchased a gallon of this for his small John Deere w/ loader. It was a fairly new tractor but already developed some leaks, the Lucas completely stopped the leaks in his.