STAR TRON Star Cool High Performance Synthetic Engine Coolant + Antifreeze - Maximum Horsepower & Year-Round Protection - Propylene Glycol Formula - 1 GAL (033200)

Unleash the full potential of your engine with STAR TRON Star Cool Premium Synthetic Engine Coolant + Antifreeze, the ultimate solution for maintaining peak performance and protection throughout the year. Crafted in partnership with the world's leading coolant additive formulators, Star Cool sets a new benchmark in coolant technology with its propylene glycol base and cutting-edge poly organic additives (POAT). This advanced formula not only ensures your engine operates at its optimum temperature for maximum horsepower but also offers an exceptional service life that far exceeds OEM specifications, making it perfect for both gasoline and diesel engines. Star Cool's innovative design offers unparalleled protection against corrosion, seals pinhole leaks and small cracks, and is pre-mixed with de-ionized water for immediate use. It's ideal for all water-cooled engines, providing year-round protection from boilovers up to 265°F and freezing down to -26°F. Beyond its exceptional thermal capabilities, Star Cool is engineered to be non-toxic and safe, ensuring it won't clog radiators while being compatible with all types of coolants. Whether you're topping off your system or undertaking a complete flush and fill, Star Cool's versatile formula is easy to use, following straightforward directions for flushing and filling your cooling system. Available in both gallon and 64 oz sizes, it meets or exceeds all relevant OEM and ASTM standards, packaged legally for sale in all 50 states. Embrace the cutting-edge of coolant technology with STAR BRITE Star Cool and give your engine the protection and performance it deserves. Do not remove radiator cap if hot. Refer to Manufacturer’s Engine Service Manual for flushing and filling. DIRECTIONS 1. If none are available: 1. Check cooling system for leaks, loose connections or worn parts. 2. Remove radiator cap, open radiator and engine block drains, then flush system completely with clean water. 3. Close radiator and engine block drains when all water is drained out of system. 4. Fill system with STAR TRON Star Cool Synthetic Engine Coolant. DO NOT ADD WATER. Make sure that the level is slightly lower than the filler neck. 5. Run the engine for 5-10 minutes to reach normal temperature; the thermostat should now open, releasing any trapped air. If necessary, add more solution to fill radiator. 6. Finally, replace radiator cap and check for any leaks.

MAXIMUM ENGINE PERFORMANCE - Engineered with unique PCT additives to maintain optimal temperatures for peak horsepower and efficiency without compromising safety EXTENDED SERVICE LIFE & ADVANCED PROTECTION - Surpasses OEM specifications with up to 2+ years of service, utilizing POAT technology for superior corrosion resistance and leak prevention BIODEGRADABLE & DESIGNED FOR ALL ENGINES - Propylene glycol base ensures compatibility across all engine types without clogging, ideal for high-performance and diesel engines YEAR-ROUND RELIABILITY - Offers protection against boilovers at 265°F and freezing down to -26°F, ready to use pre-mixed formula simplifies maintenance COMPATIBLE WITH ALL COOLANTS - Versatile for topping off or complete flush and fill, seals pinhole leaks and small fissures to enhance cooling system integrity