Shell Oil 9407006021 Dexcool Extended Life 50/50 Premix Coolant 1 Gallon (Case of 6)

Shell Oil 9407006021 is a single-phase, ethylene glycol-based extended life universal engine coolant featuring an advanced carboxylate inhibitor system. This DEX-COOL compatible coolant is pre-mixed in a convenient 50/50 ratio with deionized water, ready to use straight from the container without additional dilution.

Key Features:

• Extended life carboxylate inhibitor technology for long-lasting protection
• 50/50 pre-mix formula ready for immediate use
• Ethylene glycol base provides excellent freeze and boil-over protection
• Suitable for heavy-duty applications not requiring nitrite supplementation
• Service life up to 400,000 miles or 8,000 hours in heavy-duty applications
• Universal compatibility with most gasoline and diesel engines
• Case pack of 6 one-gallon containers for fleet and commercial use

This extended life coolant provides superior corrosion protection for engine cooling system components including aluminum, cast iron, steel, copper, brass, and solder alloys. The carboxylate-based formula offers excellent thermal stability and heat transfer properties to maintain optimal engine operating temperatures. Ideal for automotive, light truck, heavy-duty truck, and stationary engine applications where long service intervals and reliable performance are required.