Government officials and Mothers Against Drunk Driving have asked motorists to drive with their headlights on Saturday in a "Drive for Life" campaign to keep drinkers off the roads.

Leaders of MADD were joined at a news conference Friday by Transportation Secretary Jim Burnley, other federal, state and local officials and executives of Volkswagen United States Inc., to promote the observance. The weekend activities include nationwide television advertisements and various local events, such as petition signings, to stiffen drunken driving laws.Congress and President Reagan have proclaimed the long Labor Day weekend the National Drive for Life Weekend.