Prediluted formula contains 50% distilled or deionized water, mixed with 50% full-strength concentrate, making it ready-to-use straight from the bottle.
Concentrated formula contains 100% full-strength concentrate, and must be mixed with the recommended ratio and type of water (typically distilled or deionized) before use.
Coolant / Antifreeze Says a lot about Cooling System Health!
Routinely inspect your Coolant / Antifreeze with these simple checks, and flush the system when necessary, to help prolong the life of your Cooling System:
COOLANT COLOR / CLARITY
Coolant should be bright, clear and free of debris. Dirty or brown coolant can be caused by:
Stray electrical current from a loose or damaged Battery Cable ground
Worn / old, acidic coolant
A reading of 0.4 volts or above suggests electrolysis
Videos
Importance of Routine Cooling System Maintenance
Prestone® Helps Avoid Costly Repairs
Additional Resources
Material Safety Data Sheet (MSDS)Antifreeze is recyclable! Many towns have free waste drop-off sites, which a quick internet search will help you find.
Coolant / Antifreeze Says a lot about Cooling System Health!
Videos
Additional Resources