I recently purchased and old 82 Buick skylark and it steered like an “old” John Deer Tractor on steel. I took it to the mechanic this morning to schedule replacing the race. Then I stopped and go a twelve oz bottle of Lucas Power Steering Stop Leak. Mine didn’t leak but it had “Hard Spots” that would break free as you turned a corner; almost sending you up over the curb onto the sidewalk. Now, I siphoned the power steering pump dry, and added your product. I started the vehicle, and with God as my witness, the power steering was corrected instantly. I didn’t jerk a few times and get better gradually. It was fixed instantly!!!