Petroleum Service Company carries a variety of Extended Life Coolants for your Heavy Duty Diesel Engine. 

Our Extended Life Coolants meet several specifications & performance requirements, including:

• Cat EC-1 - Cummins 14603 - Detroit Diesel 93K217
• MTU 5048 - Behr Radiator - Mercedes DBL 7700
• MAN 324 typ SNF - ASTM D-6210 - ASTM D-3306
• John Deere H24A2/C2, H24A1 - Mack Tuck SB232-014
• Navistar B1 - Mercedes DBL 7700
• ASTM D-6210 - SAE J1941 - SAE J1034 - TMC RP 329