Driving performance
Putting the XF105’s power to work in
a fuel-conscious way.
The 3 basic rules:
Use as little energy as possible to get
the vehicle up to speed.
Select appropriate gear.•
Rate the energy required.
Do I really need to accelerate that •
much in this situation?
Use the vehicle speed.
40 tons at speed is a lot of energy; •
make optimal use of that vehicle
energy.
Gearbox
Manual gearbox; 16 gear
Gear selection advice
(laden, on the level):
2L-4L-5L-6L-7L-7H-8L-8H
AS-Tronic, 12 gears
Automated gear changing based on:
Vehicle weight.•
Driving resistance.•
Throttle position.•
You don’t have to, but over-riding
the shifting is always possible:
Change gear up at lower engine •
speeds.
Hold the gear (driver’s judgement).•
Using kick-down on the throttle will
achieve higher engine revs but results
in higher fuel consumption with only a
limited increase in performance:
• The kick-down is to be used very
rarely.
Engine revs
Accelerating laden on level ground:
Change full gear at 1,400 rpm.•
Change half a gear at 1,250 rpm.•
On a slope: some 100 rpm more.•
Driving with optimum fuel economy:
At full throttle: 1,050-1,350 rpm.•
If not: close to 1,000 rpm.•
Engine
The MX engine in your XF105 offers:
Max. tractive force from as low as •
1,000 and up to 1,410 rpm.
Maximum output already at •
1,500 rpm.
Optimum fuel economy is reached in
general between 1.000 and 1.400 rpm
(green band).
12 DAF XF105 QUICK GUIDE
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