Vauxhall VECTRA Owner's Manual page 232

The cooling fan is electrically operated. Its
cooling power is therefore independent of
the engine speed.
Since a considerable amount of heat is
generated at high engine sp eed s a nd less
at slower speeds, d o not shift down when
climbing hills whilst the vehicle is still coping
with the g ra dient in the higher gea r.
Diesel engines: O n rising g radients of 10%
or more, do not drive faster than 20 mph
(30 k m/h) in 1st gear or 30 mph (50 km/h)
in 2nd gea r; with automatic
transm ission 3, do not exceed 25 mp h
(40 k m/h) in position 1.
Start ing on inclines
For vehicles with manual transmission,
the most favourable engine speed when
starting-off on an incline is between 2500
and 3000 rpm for petrol engines and
between 2000 and 2200 rpm for diesel
engines. Hold engine speed constant,
engage clutch gradually (let slip), release
ha ndb ra ke and open throttle. If possible,
the engine speed should not drop d uring
this procedure.
Driving and o peration
For v ehicles with a utomatic transmission 3
or Easy tronic 3 in Autom atic mode it is
sufficient to apply full throttle.
Before starting-off under extreme
conditions (high combination weight,
mountainous terrain w ith steep inclines),
switch off all unnecessary electrical loads
(e.g. heated rear window, air conditioning
system 3, heated seats 3).
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