Purpose and Specifications

LIQUI MOLY Petrol Stabiliser 5107 is a premium fuel additive designed to protect gasoline in 2-stroke and 4-stroke engines from oxidation and aging. This ash-free formula preserves fuel quality during storage, preventing corrosion in the entire fuel system for classic cars, motorcycles, lawnmowers, and other equipment.

• Simple dosing: 25 ml treats 5 liters of fuel using the built-in dispenser bottle (250 ml total volume).
• Long-lasting protection: Keeps fuel stable for months of storage, even up to 12 months or more when used properly.
• Easy application: Add to tank before storage and run engine for 10 minutes; safe for catalytic converters.
• Practical benefits: Stops gum and varnish buildup, ensures reliable starts after long downtime, and protects against rust from fuel moisture.

When to Use / Replace?

Use before decommissioning vehicles or equipment for winter, seasonal storage, or extended periods over 2-3 months. Ideal for classic cars parked 6+ months, weekend motorcycles, or garden tools not used year-round. Reapply every 12 months for stored fuel or when refilling after long inactivity to maintain protection.

Storage tip: Effective from -20°C to 60°C operating temps, preventing condensation rust even in humid conditions.

FAQ

Q: How much do I need for a full tank?
A: 25 ml preserves 5 liters; for a 50-liter tank, use the full 250 ml bottle.

Q: Is it safe for modern engines?
A: Yes, tested for catalytic converters and all gasoline engines, including hybrids during storage.

Q: What if my vehicle sits unused for a year?
A: Add before shutdown for worry-free starts; fuel stays fresh without phase separation or corrosion.