I have been using FrogLube exclusively for 3 years now, and have broken in all my guns from new with it without any problems. I recently purchased a 1911 and listened to someone that said use oil only on it, mistake, it locked up. Brought it home cleaned it up removed all the oil and Frog’Lubed it. Went back to the range and it fired flawlessly. I should have known better. I also recently bought the FrogLube Solvent and WOW, it works better than traditional solvents at removing carbon. I will never go back to the old cleaners and lubes.