I know it's controversial and I'll probably get flamed but here goes. Once in the correct gear so the engine is doing most of the braking. The service brakes should be applied continuously and just enough to maintain the desired speed. This will result in the lowest temperature rise of the brakes. Letting speed build up then braking to a lower speed and repeating will result in hotter brakes. In other words riding the brakes, contrary to popular belief is the best technique.RegardsJerry 4107 1120
When the Commercial Drivers License (CDL) manual was first published, it recommended that a driver use a light and steady application of the brakes when descending steep grades. This recommendation was based on an old theory that heavy brake applications would generate more heat than light applications. This method (controlled braking) was commonly taught to drivers and, even after changes were made to the CDL manual because this theory was proven wrong, the method is still taught and practiced today.