Maintaining a 4x4 is more important than for a sedan city car. In the outdoors and away from the pavement, help is costly and sometimes totally inaccessible. There are several sources to help maintaining your 4x4 apart from normal common knowledge of cars and mechanics.
Jeep Cherokee XJ (assembled in Egypt during 1995-2001) is one of the most common 4x4s in Egypt.
Download the Owners Manual of Cherokee XJ here: