Originally Posted by
Matt W
Hi,
Ive noticed a lot of the top drivers sometimes use 3000 rear diff oil even though they are racing on a tight and twisty track. Ive always thought that thicker diff oil reduces rotation in the rear, is this right?
Thicker Oil increases rotation. The lighter the oil, the more the gears inside the diff works which creates traction and less rotation. The thicker the oil, the diff works less, therefore less traction and more rotation.