Four Seasons presents a 1 oz. Bottle Cooling System Fluorescent Dye that is designed to provide years of trouble-free operation. Our products are crafted with the highest quality materials and backed by over 50 years of mobile A/C experience, ensuring that customers can fix it once and fix it right with Four Seasons.

This dye is specially formulated for use with red/orange/yellow and pink colored extended-life coolants. It features a non-discoloring property that will not alter the color of the coolant, and it can be detected easily with any UV or blue light. Additionally, included in the package are dye installed stickers that allow customers to monitor their coolant levels with ease.

Four Seasons' 1 oz. Bottle Cooling System Fluorescent Dye is the perfect solution for ensuring your vehicle's cooling system runs optimally and safely. Its high-quality materials and design provide an efficient and reliable cooling system that is backed by over 50 years of mobile A/C experience.

Car & Truck Engine Coolant / Antifreeze Leak Detection Dye