Prestone Command ESI Precharged Antifreeze + Coolant: Purple, Concentrate, 1 Gallon

Prestone® Command® Extended Service Interval (ESI) antifreeze+coolant (Concentrate) is designed to work with all Class 6-8 vehicles. It is compatible with any IAC engine. This formula is Nitrited and precharged with supplemental coolant additive (SCA). Command ESI is a stabilized, low silicate formula, which helps reduce deposits and hard water scale buildup. There are no phosphates in this formula. Command ESI requires monitoring and maintaining the additive levels (SCAs).

• Extended Service Internal (ESI) SCA Precharged – Purple Formula
• Stabilized, Low silicate (no phosphates) formula – helps reduce deposits & hard water scale buildup
• Meets OEM Performance requirements: ASTM D6210, D3306, D4985; TMC RP329A, RP338A; Cummings CES 14603, CES 90T8-4; Detroit Diesel 93K217, 7SE298 and many OEM requirements
• Concentrated formula. Must mix with high quality (distilled/deionized) water to the desired ratio. Can be used for top-off, complete drain and refill or flush and refill of the cooling system.