Volvo 2008 V70 Owner's Manual page 260

1
Under normal driving conditions the transmission oil does not need changing during its service life. However, it may be necessary under adverse
driving conditions.
2
Models without headlight washers
280
06 Maintenance and specifications
Specifications
Electrical system
General information
12 volt system with a voltage-regulated alternator. Single pole system in which the chassis and engine block are used
as conductors. The negative terminal is connected to the chassis.
WARNING
PROPOSITION 65 WARNING!
Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the state of
California to cause cancer and reproductive harm. Wash hands after handling.