What oil in citreon xsara picasso 1.8sx petrol 2001

SOURCE: brake lights not working all time could it be because loose pedal on xsara picasso

Definately a likely cause. The brake lights are controlled by a switch that is located next to the brake pedal. When you push the brake pedal, the switch moves and turns on the lights. If your brake pedal is loose or the switch is not aligned just right, it could cause your brake lights to fail intermittently.