10W-40 Engine Oils

A Guide to 10W-40 Engine Oil

10W-40 engine oil is a highly versatile lubricant, known for its robustness and excellent performance across a wide range of conditions. It provides a thicker protective film than lower viscosity oils, making it an ideal choice for high-performance engines, vehicles operating under heavy loads, and many older cars. Eiffel Lubricants offers a comprehensive range of 10W-40 oils to meet these demanding needs.

What Does the "10W-40" Viscosity Rating Mean?

The code "10W-40" is a viscosity grade from the Society of Automotive Engineers (SAE) that describes how the oil behaves at different temperatures.

• 10W: The 'W' is for 'Winter'. The number 10 describes the oil's flow at cold temperatures. A 10W grade ensures the oil is fluid enough to circulate quickly and protect your engine during cold starts.
• 40: This number indicates the oil's viscosity at normal operating temperatures. A 40-grade oil is thicker and more resistant to thinning out in high heat, which helps to provide a strong, stable film of protection for engine components under stress.

What Kind of Vehicles Use 10W-40 Oil?

Thanks to its balanced properties, 10W-40 is recommended for a diverse range of vehicles, from everyday passenger cars to heavy-duty trucks. It's often a great fit for:

• European and High-Performance Cars: Many European vehicles and those with turbocharged or modified engines specify a 10W-40 oil for its high-temperature protection.
• Diesel Engines: It is a very common grade for both light-duty and heavy-duty diesel engines, where it helps to protect against wear caused by soot and high pressure.
• Older Vehicles: Cars with higher mileage can benefit from a thicker oil like 10W-40, as it can help to reduce oil consumption and better fill the larger clearances between worn engine parts.

The Benefits of Using a Premium 10W-40 Oil

Choosing a high-quality 10W-40 oil helps ensure your engine gets the protection it needs to perform reliably.

• Designed for Heavy-Load Protection: The robust 40-grade viscosity at operating temperature is designed to provide excellent protection against wear when towing, carrying heavy loads, or in performance driving situations.
• Helps to Maintain Engine Cleanliness: Our 10W-40 formulations contain advanced detergents designed to fight sludge and deposit buildup, which contributes to a healthier, longer-lasting engine.
• Excellent Thermal Stability: A quality 10W-40 oil is engineered to resist breaking down under high heat, ensuring consistent lubrication and protection kilometre after kilometre.

Always consult your vehicle's owner's manual for manufacturer-specific recommendations.