When driving off-road, shift into 4WD LOW for additional traction or to improve handling and control on slippery or difficult terrain. Due to the lower gearing, low range will allow the engine to operate in a higher power range. This will allow you to idle over obstacles and down hills, with improved control and less effort. Also, use 4WD LOW in rain, ice, snow, mud, and sand to get heavy loads rolling, improve traction, or whenever 4WD HIGH traction will not do the job.