GMC 1996 Sonoma Owner's Manual page 161

F eeway Drivin
Mile for mile, freeways (also called thruways, parkways,
expressways, turnpikes or superhighways) are the safest
of all roads. But they have their own special rules.
The most important advice on freeway driving is: Keep
up with traffic and keep to the right. Drive at the s m e
speed most of the other drivers are driving. Too-fast or
too-slow driving breaks a smooth traffic flow. Treat the
left lane on a freeway as a passing lane.
At the entrance. there is usually
a
ramp that leads to the
freeway. If you have a clear view of the freeway as you
drive along the entrance ramp. you should begin to
check traffic. Try to deterrnine'where you expect to
blend with the flow. Try to merge into the gap at close to
the prevailing speed. Switch on your turn signal, cl1ec.k
your mirrors and glance over your shoulder
as
often
as
necessary. Try
t o
blend smoothly with the traffic flow.
Once you are on the freeway. adjust your speed to the
posted limit or to the prevailing rate if it's slower. Stay
i n the right lane unless you want
t o
pass.
Before changing lanes. check your mirrors. Then use
your turn signal.
Just before you leave the lane, glance quickly over your
shoulder to make sure there isn't another vehicle i n your
"blind" spot.