BMW宝马手动变速箱油规范.pdfVIP

Operating Fluids April 2009 Group 23 Manual Transmission Technical Service 1.0 General Information on Gear Lubricants 2.0 Oil Additives 3.0 Manual Transmission Oil Requirements and Specifications 4.0 Transmission Oil Change Interval 5.0 SMG: Sequential Manual Gear Box 1.0 General Information on Gear Lubricants Gear lubricants for manual transmissions must conform to the following requirements due to the different transmission designs with considerable variation in loads, temperature and speeds. The qualities of a recommended gear lubricant are: A. Load carrying capacity, i.e. high-pressure resistance. B. Noise reduction. C. Non-corrosive to various metals. D. Non-foaming. E. Non-separation of additives at operating temperatures. F. Non-sludge forming. G. Prevention of swelling, hardening and shrinking of seals. These properties are already provided in manual transmission oil by: — High-pressure additives. — Corrosion inhibitors. — Oxidation inhibitors (inhibitors which limit or prevent chemical reactions). — Anti-foaming agents. 2.0 Oil Additives BMW manual transmissions are designed so that they do not require aftermarket oil additives. BMW disapproves the use of any oil additives and cannot accept the liability for any consequential damage that results from using oil additives. 3.0 Manual Transmission Oil Requirements and Specifications Page 1 of 3 A. All reputable brand mineral-based transmission oils of viscosity class SAE 80 according to specifications MIL-L-2105 or API GL-4 (no label on transmission bell housing). B. Synthetic transmission fluid, Mobil SHC 630 (325e/528e without dual mass flywheel, produced before mid-1986). Manual tra