الموضوع: زيت Long Life

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SEAL OF APPROVAL

As engine technology is involving faster and faster, carmakers are often tempted to write their demand into their certification specs. These demands cover a number of fields, including lubrication.
To earn certification, lubricants have to fulfill international standards - mainly those issued by ACEA (the European Automobile Manufacturers Association ) and API (the American Petroleum Institute) - as well as manufacturer-specific standards. BMW's successive certifications specs, for instance, have stretched oil-change intervals substantially over recent years: from 10,000 to 15,000 km for the BMW Special Oil standard; 30,000 for the BMW Long Life 1998 (LL-98) standard; and more than 30,000 km for the BMW Long Life 2001 (LL-01) standard, of which the fuel-economy version (LL-01 FE) is a niche certification as it only applies to one engine.
ELF's comprehensive and competitive range

As part of its ongoing efforts to improve its range, ELF has custom-engineered a synthetic Motor oil for BMW cars: Elf EXCELLIUM XLL. This does more than comply with BMW's LL-01 standard; the XLL in the name stands for Extra Long Life, and points to the fact that this new lubricant can withstand about 40,000 km before it needs to be
changed. In other words, you could almost drive around the world before changing your oil! The product's main advantages include its oxidative stability which explains the extra-long oil-change intervals and the pledge that it will keep the engine clean while protecting it against wear. Engine cleanliness and protection from wear also make compatible with BMW's proprietary Valvetronic system.