Universal stop-leak for engine oil, transmission fluid and power steering. One bottle for all systems.
The One Seal Stop Leak is a universal formulation that conditions rubber seals across different fluid systems. If you have a slow oil seep from the engine, a power steering leak, and a transmission seep — One Seal treats all three with a single bottle. It works by causing the rubber seals to swell slightly and re-seat against the mating surface, stopping the leak without any disassembly.
vs system-specific stop leaks: The One Seal is more convenient if you have leaks in multiple systems. For a known specific leak (e.g. rear main seal only), the dedicated Concentrated Rear Main Seal Repair is more targeted and stronger.
Tell Arjun your vehicle and situation — he'll give you a straight answer, not generic advice.