Forte Seal Conditioner is an effective engine oil additive that helps fix valve seals, reduce smoke, and stop oil leaks. Just add 2oz of this concentrated conditioner to your engine oil at each oil change. It works to recondition worn seals and leave a protective barrier that prevents future leaks. Say goodbye to blue smoke bellowing out on acceleration thanks to Forte Seal's ability to seal and protect vulnerable valve stem seals. Stop worrying about leaks under your car too, as this additive forms a tough, resilient seal to keep oil where it belongs. Just a few ounces is all it takes to notice a difference in how your engine runs. Extend the life of your vehicle with Forte Seal Conditioner.