[rheavn]

Do you know what coolant you are using?  Remember color means nothing.  Are you using a conventional coolant that requires checking sca's and draining every 2 years or an OAT formula, extended life coolant that requires draining every 6 years?  Remember using the wrong coolant or not maintaining the coolant system is one of the few things that CAN DAMAGE your engine.

Here is the DD approved coolant list.

http://ddc.tei-net.com/approvedlistprint-93k217.asp

Here is DD Coolant document.

https://ddcsn-ddc.freightliner.com/cps/r...2_2017.pdf

Approved list:

Detroit Fluids Specification 93K217 Approved Coolants List

DISCLAIMER: Product registration means the manufacturer or marketer has faithfully collected information pertinent to the requirements of the specification and with the full intention to conform to the specification. However, it is still the responsibility of the manufacturer or marketer to ensure satisfactory performance of its products in all aspects at all times. Registration for Detroit Fluids Specification 93K217 does not waive the liability of the manufacturer or the marketer. DDC does not warrant the performance of non-DDC products, registered or not.

Company Name

Product Name

Inhibitor Technology

Detroit Diesel Corporation

Power Cool

Conventional

Detroit Diesel Corporation

Power Cool Plus

Organic Acid

BP Lubricants
Castrol Heavy Duty Coolant
Conventional
BP Lubricants
Castrol Heavy Duty Extended Life Coolant / Antifreeze
OAT
Caltex
DELO XLC A/C
OAT
CCI CORPORATION
CCI L1415
OAT
Chevron Lubricants
DELO XLC A/C
OAT
Cummins Filtration
Fleetcool EX
Conventional
Cummins Filtration
Fleetcool
Conventional
Cummins Filtration
Fleetcool OAT
OAT
Cummins Filtration
ES COMPLEAT OAT
OAT
Daimler Truck and Bus Australia Pacific Pty Ltd
Alliance Primecool GP P40
OAT
ExxonMobil
Mobil Mining Coolant
Conventional
ExxonMobil
Mobil Heavy Duty Coolant
Conventional
ExxonMobil
Mobil Delvac Extended Life Coolant
OAT
Old World Industries, Inc.
FINAL CHARGE Global Extended Life Coolant
OAT
Old World Industries, Inc.
FLEET CHARGE Fully Formulated Coolant
Conventional
Old World Industries, Inc.
Power Cool
Conventional
Old World Industries, Inc.
Power Cool Plus
OAT
Prestone Product Corporation
Prestone Command® Heavy Duty ESI Antifreeze/ Coolant
Conventional
Raloy Lubricantes S.A. de C.V., MX
Antifreeze Raloy G30
OAT
Shell Global Solutions
Shell Rotella Ultra ELC
OAT
Shell Global Solutions
Shell Rotella ELC NF (Nitrite-Free)
OAT
Shell Global Solutions
Shell HD Fully Formulated Phosphate Free Antifreeze / Coolant
Conventional
The Valvoline Company
Zerex G30
OAT
The Valvoline Company
Zerex G40
OAT