Help reduce annoying oil leaks and prevent costly vehicle repairs with Nulon Engine Stop Leak. The stop leak formula is designed to rejuvenate dried, hardened and shrunken oil seals, bringing them back to life and reducing oil leaks. Nulon Engine Stop Leak also helps to reseal valve stem oil seals to reduce exhaust smoke on engine start up and take off. It can also be used to stop leaks in manual gearboxes and differential.
Easy to use, simply add 1 bottle for every 5L of oil at any time and idle engine for 1 minute. Nulon Engine Stop Leak is suitable for use with all petrol, diesel and LPG engines and is safe to mix with all oil types including mineral, semi-synthetic and full synthetic blends.