The thicker the oil, the less your differential will "diff out" in the corners, where the two tyres will turn at different speeds. Changing the diff oil in your diffs is one of the most important tuning options for off-road buggies.
The thicker the oil, the less your differential will "diff out" in the corners, where the two tyres will turn at different speeds. Changing the diff oil in your diffs is one of the most important tuning options for off-road buggies.