ROWE OIL LEAK STOP is an oil-soluble additive that gently reconditions hardened engine seals and gaskets to curb oil leaks. It restores elasticity to dried-out elastomer seals, helping them seat again and stop weeping at the crankshaft, valve cover and other gasket points. It is a practical first step before resorting to costly seal replacement.

Purpose and specifications

This product is designed for petrol and diesel engines, with or without turbocharger, that show minor to moderate oil seepage from aged seals. It is a maintenance additive without an engine oil viscosity approval and is added directly to the engine oil already in the sump. Compatible with all common modern engine oils and seal materials.

• 250ml container treats one normal engine oil fill
• Stays effective across normal operating temperature, conditioning seals as the engine warms and cools
• Re-swells and softens hardened seals to reduce leaks and protect against oil loss
• Helps avoid premature gasket replacement and keeps the engine bay and parking spot cleaner

When to use / change?

Add it to warm engine oil when you notice small oil patches or seepage from aging seals; the effect develops over the following hundreds of kilometres of normal driving. It remains active for the oil-change interval, so add a fresh dose at the next service, typically every 10,000 to 15,000 km or once a year. It works across normal engine operating temperatures. Unopened, the product has a shelf life of approximately 5 years when stored cool and dry.

Frequently asked questions

Can it fix a heavy oil leak?
No. It is intended for minor to moderate seepage from hardened seals. A large or pressurised leak usually needs mechanical repair.

Is it safe for all seal materials?
Yes. It is compatible with common elastomer seals and gaskets and conditions them without causing damage when used as directed.

How long before I see results?
Seals need time to re-swell, so allow a few hundred kilometres of normal driving for the additive to take full effect.

Suitable for: all petrol and diesel passenger car engines. Always verify the exact approval against your vehicle's owner manual before use.