English term or phrase: filed on even date herewith. French translation: depose(dÃ©posÃ©) e a Ã  la meme mÃªme date que. le present prÃ©sent document
Quick Answer. In most cases, a vehicle's coolant should be changed roughly every 24,000 to 36,000 miles. A driver may want to change his coolant more if he often drives in hot temperatures. Continue Reading.
But the short-lived nature of the corrosion inhibitors means this type of coolant should be changed every two to three years or 30,000 miles (though some products now claim a service interval of up to 50,000 miles with improved chemistry).