The snowfall and cold weather gripping Istanbul have brought about a significant problem for diesel-engined vehicles. Frozen engine coolant can instantly render your diesel engine unusable and cause thousands of liras in damage. This is precisely why you need to mix antifreeze (anti-freeze) fluid into your engine coolant. Antifreeze Fluid Prices (2012) BP: 1 Liter 9 TL / 3 Liters 25 TL Shell: 1 Liter 8 TL / 3 Liters 24 TL Total: 1 Liter 9 TL / 3 Liters 25 TL