Is NO-LEAK Engine Oil Treatment safe to use?
Yes, unlike some other sealers, NO-LEAK is perfectly safe to use, and will not damage your engine. It works in gasoline and diesel engines and mixes with all motor oils, including synthetics and synthetic blends. How does NO-LEAK Engine Oil Treatment work? As the rubber seals age and wear under heat and pressure, they shrink, harden and dry up, which can result in oil leaks. NO-LEAK safely swells, softens, and conditions the rubber seals, which stops the leaks, and avoids costly repairs. Does NO-LEAK always stop the leak? Usually, but not always. If the leak is too severe you should have the engine repaired by a qualified service technician.