1998 Buick Park Avenue Owner's Manual - Page 223

Mile for mile, freeways (dso called thruways, parkways, expressways, turnpikes or superhighways) are the safest of d roads. But they havetheir QWII special rules. l The most important advice on freeway driving is: Keep UP with tp.&c and keep to theright. Drive at the same speed most of the otherdrivers are driving. T~o-fast or too-slow driving breaks asmooth traffic flow. Treat the left lane on a fkeeway as a passing lane.