Bennche Bighorn 400 Owner's Manual page 169

10-3 Specifications
Final gear case oil:
Type
Quantity:
Differential gear case oil:
Type
Quantity:
Radiator capacity (including all routes):
Air filter:
Fuel:
Type
Fuel tank capacity
Throttle valve:
Type/quantity
Spark plug:
Type
Spark plug gap
Model Bennche Bighorn 400
SAE80 API GL-4 Hypoid gear oil
0.4L (0.42 qt)
SAE80 API GL-5 Hypoid gear oil
0.28L (0.3 qt)
1.5 L (1.59 qt)
Wet element
Unleaded gasoline only
28L（7.4 gal）
DELPHI / MT05
DR8EA
0.6-0.7 mm (0.023-0.027 in)