Blue Devil Oil Stop Leak & Conditioner (8 oz) - 6 Pack

Oil spots on the driveway usually mean a rubber seal somewhere has dried out and shrunk. Blue Devil Oil Stop Leak works by restoring those worn seals back to their original size and flexibility rather than plugging the leak with particles that can clog oil passages.

Each 8-ounce bottle treats 4 to 6 quarts of motor oil. You pour it directly into the crankcase or oil sump of the leaking component, run the engine for 1 to 2 hours, and let the formula work its way through the system. For more stubborn leaks, it may take up to two days of normal driving to fully recondition the seal. The formula is compatible with both gasoline and diesel engines, and it also works in gear cases, differentials, axle seals, and refillable shock absorbers.

This 6-pack gives you multiple treatments on hand, whether you are maintaining a fleet, stocking a shop, or just want spare bottles for future use. The non-clogging formula will not harm the engine internals, and it works alongside your regular motor oil without changing viscosity or causing compatibility issues.