To use toothpaste to remove a tan from your hands, simply apply your tanner as you normally would. Once you are finished, squeeze a dollop of toothpaste into your palm and rub as if it was soap, making sure to get between your fingers and around your nails.
When circulation is complete, the coolant or antifreeze mixture is then drained and replaced with the standard mix of coolant and water. There is no set rule for how often a vehicle needs a radiator flush. Car manufacturers recommend that it be done at least every other year or every 40,000 to 60,000 miles. Occasionally flushing the radiator before that period is not a problem as it helps to clean and prevent build up of dirt and sediment.
When doing a coolant flush, you fill the reservoir to the max line. When you turn the engine over, you need to let it run for roughly 10 min with the cap off the reservoir and top off as necessary. During this time you are bleeding the system as well as filling the system, once the thermostat opens up.