For ETS2 (1.36.x or higher - may not support current beta - see change log for details!)
New default SCS model Fuel Capacity by Chassis (unit = Litres):
- 4x2 = 1245
- 4x2 Extra Tank = 1475
- 6x2 = 765
- 6x2/4 = 585
- 6x2/4 Midlift = 585
- 6x2 Taglift = 765
- 6x4 = 765