I have a 2007 Compass, 2 wheel drive, 5 speed standard transmission. The owners manual says not to tow with 4 wheels on the ground. In fact, it says to make sure all 4 wheels are off the ground before towing. Otherwise, damage will occur to the drive train. This makes absolutely no sense to me. I've asked 3 separate dealerships service departments about this & none have any idea why the owners manual states what it does & why any damage would occur. Are there any guru's here that can offer insight into why towing 4 wheels down is a problem for this car?