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Celsius Extended Life Concentrate Coolant/AntiFreeze - 3.78L | 56711551

Prestone

Celsius Extended Life Concentrate Coolant/AntiFreeze - 3.78L | 56711551

Part #56711551
$23.89

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Prestone 11551 is a premium Celsius® Extended Life Concentrate Antifreeze/Coolant, designed to deliver long-lasting protection and reliable performance in virtually any passenger vehicle or light-duty truck. Engineered with a blend of advanced inhibitors, this coolant safeguards your engine’s cooling system from rust, corrosion, freeze damage and overheating — whether you’re facing bitter winters or blazing summers. Compatible with aluminum and multi-metal cooling systems, 11551 helps maintain proper engine temperature, prolong component life, and deliver peace of mind mile after mile.
  • Universal fit for “all‑makes / all‑models” — Safe for use in any vehicle with an aluminum or metal cooling system. 
  • Extended‑life protection — The inhibitor package is formulated to last for years, guarding against rust, corrosion, scale build-up and premature water‑pump wear. 
  • Boil / freeze protection — Provides dependable frost protection in cold climates and boil-over prevention in hot conditions (when mixed properly). 
  • Meets or exceeds ASTM standards — Conforms to ASTM D3306 and D4985 standards for cars and light trucks, ensuring factory-level coolant performance. 
  • Prevents internal corrosion and deposits — Helps keep radiators, engine blocks, heaters and hoses clean and functioning, avoiding clogs and reducing long‑term maintenance costs. 
  • Flexible mixing — Can be mixed with other coolant brands / colors (per manufacturer’s guidelines) when needed — useful when topping off or completing a flush. 
  • Easy to use concentrate — Mix with distilled/deionized water as per instructions for optimal protection, offering a cost‑effective way to maintain system performance.
BrandPrestone
Product Dimensions 29.53 x 10.92 x 19.05 inches
Manufacturer Part Number11551

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