After pausing the game put in one of the following codes

winalottery - Get Money & license
openallroads - Get all Roads
hardtruckisthebest - Get Money & license
advancedmap - See hidden containers on map view
fillup - Unlimited fuel
minesoff - Get rid of mines

No cost for fixing damage!:

All you do is when you have damage on your truck press Back space and your damage will
be fixed with no charge!!

Get free Recovery:

Press Ctrl + 5

Thruster Info:

Ctrl + 1 Forward
Ctrl + 2 Backward
Ctrl + 3 Up
Ctrl + 4 Down