2003 Saab 9-3 Owner's Manual - Page 239
2003 Saab 9-3 Manual
Page 239 highlights
Technical data Other grade classifications: API and ACEA designations can also be found on the packaging alongside the GM designations GM-LL-A 025 and GM-LL-B 025. Oil for gasoline engines classified in accordance with API standards (American Petroleum Institute) can include SH (since 1993), SJ (since 1996) and SL (from 2001) classes. SL class oils fulfil the most stringent requirements. These grade classes are most often combined with the corresponding classes for diesel engines. The class designations for diesel engines begin with the letter "C" (Commercial). For example, a grade combination suitable for both types of engine could be API SJ/ CF or SL/CF. Under ACEA nomenclature, oils are divided into Class A for petrol engines and Class B for diesel engines. There is a further class for heavy diesel engines. Each class is divided into three or four (diesel) grades where grades 2 and 3 (diesel: 4) normally encompass products comprising semi and fullysynthetic components. In the same way as in the API system, gasoline and diesel engine specifications are combined for products that can be used in both types of engine. For example, a grade designation could be ACEA A2/B2 or ACEA A3/B3-B4. 239 Viscosity: The viscosity of oil is classified according to the SAE standard (SAE: Society of Automobile Engineers). Nowadays, multigrade oils are always used in cars. The properties of these oils facilitate starting the car in cold weather but mean that the oil is also sufficiently viscous to coat all moving parts under all operating conditions. Multigrade oils are graded with two viscosities, e.g. 0W-30, where the 0W meets certain viscosity requirements at -22°F (- 30°C), while the 30 fulfils requirements at a temperature of 212°F (100°C). The approved gasoline engine oil, GM-LL-A 025, has a viscosity of SAE 0W-30. Oil capacity, including filter (oil change) __ 6.3 qts. (6.0 l)