How much oil yz 450 f 2008?

The 2008 Yamaha YZ450F typically requires about 1.6 quarts (1.5 liters) of oil when changing the oil and filter. If you're only changing the oil without replacing the filter, it may need around 1.4 quarts (1.3 liters). Always consult the owner's manual for the most accurate specifications and recommendations.