Automatic diffs, wipers, transmissions… boy, aren’t we all getting lazy!

Hi JM, Could you please explain to us this small mystery… Many versatile 4x4s like the (police) Landcruisers have free-spinning front hubs which you must physically get out into the mud to lock before engaging four-wheel drive. This free-wheeling, we were told long ago, enhances fuel consumption on tarmac by reducing drag on the front […]