Yamaha VIKING VI 2021 Owner's Manual page 161

Recommended engine oil grade:
API service SG type or higher, JASO standard MA
0 10 30 50
SAE 5W-30
SAE 10W-30
SAE 10W-40
–20 –10 0 10
Quantity:
Oil change:
2.20 L (2.33 US qt, 1.94 Imp.qt)
With oil filter removal:
2.30 L (2.43 US qt, 2.02 Imp.qt)
Final gear oil:
Type:
SAE 80W-90 API GL-5 Hypoid gear oil
Quantity:
0.40 L (0.42 US qt, 0.35 Imp.qt)
Differential gear oil:
Type:
SAE 80W-90 API GL-5 Hypoid gear oil
Quantity:
0.18 L (0.19 US qt, 0.16 Imp.qt)
70 90 110 130 ˚F
SAE 15W-40
SAE 20W-40
SAE 20W-50
20 30 40 50 ˚C
Coolant quantity:
Radiator (including all routes):
3.24 L (3.42 US qt, 2.85 Imp.qt)
Coolant reservoir (up to the maximum level mark):
0.28 L (0.30 US qt, 0.25 Imp.qt)
Fuel:
Recommended fuel:
Regular unleaded gasoline (Gasohol [E10] acceptable)
Minimum research octane:
91
Fuel tank capacity:
37 L (9.8 US gal, 8.1 Imp.gal)
Fuel reserve amount:
9.0 L (2.38 US gal, 1.98 Imp.gal)
Throttle body:
ID mark:
1XD1
Front tire:
Size:
25x8-12NHS
Manufacturer/model:
MAXXIS/MU09
Rear tire:
Size:
25x10-12NHS
Manufacturer/model:
MAXXIS/MU10
Front brake:
Type:
Hydraulic disc brake
11-2
11