Author : Kaushal Sheth With the arrival of spring, many of us embark on a thorough cleaning exercise of our vehicles We wash out the dirt, scrub the tires, and give a new sparkle to the car Few of us, however, consider looking underneath the bonnet Having faced the harsh winter months, most cars need some caring at the level of the engine too, and because we overlook this, expensive repairs are needed in the coming months Pat Goss, host of PBS, Motor Week and Washington Post automotive co