Purpose and Specifications

MOTUL Engine Oil Stop Leak 300ml is a powerful additive that stops oil leaks in gasoline and diesel engines by keeping gaskets and seals flexible. Add one 300ml can to up to 5 liters of engine oil at operating temperature for quick action during normal driving.

It works in all 4-stroke engines, turbocharged or naturally aspirated, with catalytic converters or carburetors. Compatible with mineral and synthetic oils, it rejuvenates aging seals to prevent leaks from valve covers, bearings, and small cracks.

• Volume: 300ml treats 5L oil (50ml per extra liter)
• Operating temps: Activates at normal engine heat, around 80-100°C
• Shelf life: 5 years unopened in cool, dry storage

When to Use / Replace?

Use when you spot oil spots under your car or low oil levels between changes. Ideal after oil and filter service, or anytime to prevent leaks. Drive 500-1000km for full effect on small leaks. Safe for ongoing use every 6 months or 10,000km during oil changes.

Check oil level first - don`t overfill. Replace with next oil change; don`t exceed dose to avoid issues.

FAQ

Will it fix big leaks? Best for small seepages from worn seals; major damage needs mechanic repair.

Can I use it in my daily driver? Yes, in petrol or diesel cars, vans - works automatically while you drive.

How fast does it work? Starts sealing right away, full results in days to a month with regular use.