Purpose and Specifications

EUROLUB SYNT 5W-40 is a synthetic high-performance engine oil designed for modern gasoline and diesel engines in passenger cars. This oil delivers excellent fluidity at low temperatures and maintains stable protection at high operating temperatures, making it suitable for turbocharged and direct injection engines under demanding conditions.

The 5W-40 rating means the oil flows easily during cold starts (even in winter) while maintaining a protective film at normal engine operating temperatures (around 100°C). The synthetic formulation provides superior wear protection and extended engine cleanliness, allowing for longer intervals between oil changes compared to conventional oils.

Key Benefits:

• Fuel-efficient formula reduces consumption without sacrificing engine protection
• Excellent cold-start performance in temperatures down to -25°C
• Stable viscosity at engine operating temperatures up to 150°C
• Enhanced engine cleanliness prevents sludge and deposit buildup
• Suitable for extended oil change intervals (typically 10,000-15,000 km or 12 months, depending on manufacturer recommendations)

When to Use / Replace?

Replace this oil every 10,000 to 15,000 kilometers or every 12 months, whichever comes first. Check your vehicle's owner manual for the exact interval, as modern engines with extended-life specifications may allow longer periods. Change the oil sooner if you frequently drive in stop-and-go traffic, tow heavy loads, or operate in extreme temperatures.

This oil is not suitable for pump-jet diesel engines (older Volkswagen PD engines). Always verify your vehicle's specifications before use.

Frequently Asked Questions

• Can I use this oil in both gasoline and diesel engines? Yes, EUROLUB SYNT 5W-40 is approved for both fuel types, including turbocharged variants. Check your vehicle manual to confirm compatibility with your specific engine.
• How long does an unopened bottle last? Synthetic engine oil typically maintains quality for 3-5 years when stored in a cool, dry place away from direct sunlight. Once opened, use within the current season or before the next oil change.
• Will this oil improve fuel economy? The low-friction synthetic formulation can contribute to modest fuel savings (typically 1-3%) compared to conventional oils, though actual results depend on driving habits and engine condition.