Τετάρτη 31 Οκτωβρίου 2007

oil grades

4. ENGINE OILS FOR CARS
a. SAE GRADES IN SYNTHETIC AND SEMISYNTHETIC PRODUCTS



SAE 10W-60
Recommended for outside temperatures between -25°C and +50°C

This viscosimetric grade ensures high protection at high temperatures, warranting a suitable lubricating film also under harsh operating conditions. The broad viscosity spectrum allows in any case satisfactory cold running conditions.
Ideal for sports purposes and also in competitive events.
Low Fuel-Economy performance.


SAE 10W-40
Recommended for outside temperatures between -25°C and +40°C

This is the viscosimetric grade mostly used in countries with a temperate climate, it ensures excellent performance of the lubricating film under all operating conditions. It allows good operating conditions of hydraulic tappets and reduces oil consumption.
Ideal for long motorway journeys.


SAE 5W-40
Recommended for outside temperatures between -30°C and +40°C

This particular viscosimetric grade ensures excellent performance of the lubricating film under all operating conditions. It allows excellent operating conditions of hydraulic tappets and warrants perfect cold starting.
Ideal for long motorway journeys.
Good Fuel-Economy performance.


SAE 5W-30
Recommended for outside temperatures between -30°C and +35°C

Typical viscosimetric grade for "Fuel-Economy" products, it ensures excellent performance of the lubricating film under operating conditions with harsh temperatures. It allows perfect operating conditions of hydraulic tappets.
Excellent Fuel-Economy performance.


SAE 5W-20
Recommended for outside temperatures between -30°C and +30°C

Specific viscosity grading for competition products, suitable for lubricants used on engines that need the utmost reduction of friction.
It allows the engine to substantially reduce the loss of power owing to internal friction, improving the mechanical output of the engine itself.


SAE 0W-30
Recommended for outside temperatures between -35°C and +35°C

Viscosimetric grade for extremely harsh temperatures, it ensures excellent performance of the lubricating film in the various operating conditions. It allows perfect operating conditions of hydraulic tappets.
Good Fuel-Economy performance.
Excellent cold starting characteristics.


b. SAE GRADES IN MINERAL PRODUCTS

SAE 15W-40
Recommended for outside temperatures between -15°C and +40°C

The typical viscosimetric grade for Mediterranean temperatures. It ensures excellent performance of the lubricating film in the various operating conditions. It allows fair operating conditions of hydraulic tappets. Excellent protection against wear.
Ideal for long journeys.
Fair cold starting characteristics.
Low Fuel-Economy performance.


SAE 15W-50
Recommended for outside temperatures between -15°C and +45°C

Viscosimetric grade particularly suitable for ensuring excellent performance of the lubricating film under very harsh hot conditions. It allows fair operating conditions of hydraulic tappets. Perfect protection against wear.
Ideal for long journeys.
Fair cold starting characteristics.

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