**Update** I bought the Bars Leak...it was $49.99. 24oz. bottle, though I only put in 1/4 of the bottle, followed the one-step instructions...no longer losing anti-freeze, no over heating, everything running great.
Of course my engine light came on yesterday...LOL P0161 bank 2 sensor 2 rear downstream sensor needs to be replaced, but that is how it seems to go with a Jeep...something always needs replacing. I will change out the sensor myself this weekend...looking forward to fixing it. I love being a girl with a jeep.