Overview Reviews Product Description Motul Mo Cool Radiator Additive Run up to 30 degrees cooler. Approved for street, off-road and racing. Improves heat transfer. Increases performance. Reduces corrosion. Compatible with coolants. Concentrated formula, mix at 5%. Product Videos Custom Field Product Reviews Write a Review Write a Review × Motul Motul Coolant Mocool 550 ML. 109533 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *