Engine; Engine Revs; Driving Performance; Gearbox - DAF XF105 Quick Manual

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).

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.
12

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.
DAF XF105 QUICK GUIDE

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.