BMW Motorrad R 1200 GS Rider's Manual page 151

Permissible viscosity classes
SAE 5 W- ≥30
SAE 10 W-40
SAE 15 W- ≥40
SAE 20 W- ≥40
SAE 5 W- ≥50
SAE 10 W- ≥50
-4...68 °F (-20...20 °C), Operation at low tempera-
tures
14...86 °F (-10...30 °C), Operation at moderate
temperatures
≥32 °F (≥0 °C)
≥32 °F (≥0 °C)
≥-4 °F (≥-20 °C), High-quality and synthetic oil for
operation at all temperatures
≥-4 °F (≥-20 °C), High-quality and synthetic oil for
operation at all temperatures
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