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RUDSON® DIESEL SPEC® Antifreeze + Coolant for Heavy-Duty Engines. Expertly engineered to optimize heavy-duty engine performance, whether for on-road or off-road applications. Our product range includes nitrated, nitrate-free, and extended service life formulations. Choose the DIESEL SPEC® premium quality formula that best suits your requirements.

ESI Purple - Ready To Use


Part # AFC2301 (6/1 GAL)

ESI Purple - Full Strength Concentrate


Part # AFC2201 (6/1 GAL)

Nitrate Free ELC RED - Ready To Use


Part # AFC0301 (6/1 GAL)

Nitrate Free ELC RED - Full Strength Concentrate


Part # AFC0201 (6/1 GAL)

Nitrate Free ELC YELLOW - Ready To Use


Part # AFC1301 (6/1 GAL)

Nitrate Free ELC YELLOW - Full Strength Concentrate


Part # AFC1201 (6/1 GAL)

ELC RED - Ready To Use


Part # AFC3301 (6/1 GAL)

ELC RED - Full Strength Concentrate


Part # AFC3201 (6/1 GAL)