Subaru Legacy: Synthetic oil
You should use synthetic engine oil that meets the same requirements given for conventional engine oil. When using synthetic oil, you must use oil of the same classification, viscosity and grade shown in this Owner’s Manual. Refer to “Engine oil” F12-4. Also, you must follow the oil and filter changing intervals shown in the Warranty and Maintenance booklet.
NOTE
Synthetic oil of the grade and viscosity noted in chapter 12 is the required engine oil for optimum engine performance. Conventional oil may be used if synthetic oil is unavailable.
Recommended grade and viscosity
CAUTION Use only engine oil with the recommended grade and viscosity. NOTE Engine oil viscosity (thickness) affects fuel economy. Oils of lower viscosity provide better fuel economy. However, in ...Cooling system
WARNING Never attempt to remove the radiator cap until the engine has been shut off and has cooled down completely. Since the coolant is under pressure, you may suffer serious burns from a spray ...See also:
General maintenance
During the normal day-to-day operation of the vehicle, general maintenance should
be performed regularly as prescribed in this section. If you detect any unusual
sounds, vibrations or smells, be s ...
Brake pad and lining
While maintaining a speed of 30 to 40 mph (50 to 65 km/h), step on the brake
pedal lightly. Repeat this five or more times. ...
Voice control support features
Tutorial: A feature that helps acquaint you with the system and the procedure
for giving commands.
Training: A feature that enables the voice control system to become familiar
with your voi ...