4 Lubricating oil change intervals Lubricating oil Operating media SAE 20W-50 © 2009 33 SAE 15W-40 SAE 10W-30 SAE 10W-40 SAE 5W-40 SAE 5W-30 SAE 0W-40 SAE 0W-30 °C 45 40 35 30 25 20 15 10 5 0 -5 -10 -15 -20 -25 -30 -35 -40 Depending on the ambient temperature we recom- mend the following common viscosity classes: z The intervals depend on: lubricating oil quality sulphur content in the fuel type of application of engine z The lubricating oil change interval must be halved if at least one of the following conditions applies: Constant ambient temperature below -10 °C (14 °F) or lube oil temperature below 60 °C (84 °F). Sulphur content in diesel fuel of >0.5 weight % .
operation with bio-diesel fuel z If the lubricating oil change intervals are not reached within a year, the oil should be changed at least once a year. The ambient temperature at the installation site or in the application area of the engine is decisive for choosing the right viscosity class. Too high a viscos- ity can lead to starting difficulties, too low a viscosity can endanger the lubrication effect and cause a high lubricating oil consumption. At ambient temperatures below -40 °C, the lubricating oil must be pre-heated (e.g. by storing the vehicle or the machine in a hall). The viscosity is classified according to SAE. Multi- purpose lubricating oils should be used basically.
Single-purpose lubricating oils can also be used in enclosed, heated spaces at temperatures >5 ° C. The prescribed lubricating oil quality must be observed when selecting the viscosity class! Viscosity