Engine oils additive GAT Engine Oil Stop Leak 300ml
- Model: Engine Oil Stop Leak 300ml
- Additive application: Stops engine oil leaks
- Fuel type: Diesel, Petrol
Show all
- Volume [ml]: 300
- Brand category: Middle class
- Manufacturer: GAT
- Manufacturer item code: 62077
Purpose and Specifications
GAT Engine Oil Stop Leak 300ml is a powerful additive that quickly stops oil leaks in petrol and diesel engines by softening and regenerating rubber and plastic gaskets, keeping them flexible to seal leaks at bearing seals and valve covers. This mid-range GAT product treats up to 7 liters of engine oil, using just 50ml per liter, and works during normal driving - drive at least 300km for best results. It reduces friction and wear, stabilizes oil thickness across temperatures from -30°C to 150°C, and prevents oil breakdown, boosting engine reliability without disassembly.
When to Use / Replace?
Use when you spot oil spots under your car or low oil levels between changes (every 10,000km or 12 months). Add the full 300ml bottle to warm engine oil via the filler cap, then drive normally. One treatment lasts up to 20,000km or 2 years; reapply if leaks return. Shelf life is 5 years unopened. Compatible with all mineral, semi-synthetic, and full synthetic oils in turbo or non-turbo engines.
- Stops leaks fast without mechanic visit
- Softens seals for lasting protection
- Improves performance and cuts wear
FAQ
Is GAT Engine Oil Stop Leak safe for my turbo diesel? Yes, it works perfectly in all petrol and diesel engines with or without turbos, keeping seals soft without harming parts.
How soon does it stop leaks? Effects start right away, but drive 300km for full sealing - small leaks often stop completely.
Can I use it with synthetic oil? Absolutely, mixes with any engine oil type and stays effective through oil changes every 10,000km.
Data sheet
- Model
- Engine Oil Stop Leak 300ml
- Brand category
- Mid-range
- Manufacturer
- GAT
- Volume [ml]
- 300
- Fuel type
- Benzīns
Dīzelis - Additive application
- Novērš dzinēja eļļas noplūdes
Shipping & delivery
We deliver across the European Union. Orders confirmed on business days are prepared and handed to the carrier the same or the next business day.
Delivery methods
Courier delivery to your door, or pickup at parcel lockers and points across our carrier networks.






Delivery time
Usually 1–5 business days, depending on destination and carrier.
Shipping cost
Calculated automatically at checkout by weight and destination. Free shipping may apply above a store-specific order value.
Packaging — built to arrive intact
Oil and lubricants are liquids, so we pack every order to reach you perfectly. This is the care that goes into each parcel:
The result: a clean, sealed, undamaged parcel — because getting the oil to you intact is the whole point.
Returns
14-day right of withdrawal under EU consumer law. Items must be unused and in original, unopened packaging.
Car filters – MANN-FILTER
Time for your car's maintenance? Choose the right filters by make, model and engine – or let our AI search find the filters for your exact vehicle.