OAT M&N HD Diesel Extended Life Coolant

OAT M&N Heavy Duty Diesel Extended Life Antifreeze/Coolant is based on a proprietary organic acid corrosion inhibitor package powered by RECO-COOLTM technology (OAT) with nitrite and molybdate.

This ethylene glycol based product is free of amines, borates, phosphates and silicates. Its proprietary OAT corrosion inhibitor package DOES NOT contain any 2-EHA. It protects coolant system metals against rust and corrosion and provides excellent high temperature aluminum and wet sleeve liner cavitation protection. It’s designed for use in heavy duty diesel applications where extended service interval and aluminum compatibility is required. It is recommended for use in on-road truck, off-road, farm and marine engine applications including, but not limited to, Caterpillar, Cummins, Detroit Diesel/MTU, GM Heavy Truck, Freightliner, PACCAR and Volvo Mack.

*When added as an initial fill and properly maintained in accordance with engine manufacturer’s maintenance recommendation, this product will provide an in-service life of up to 1,200,000 km, 15,000 hours or 8 years, whichever comes first. This lobrid antifreeze/coolant contains organic additive technology (OAT) with a small amount of inorganic additives (IAT) and is compatible with other OAT coolants with no adverse effects. While deleterious effects are not expected to be significant, mixing with conventional coolants will result in a lower than expected lifetime.

OAT M&N Heavy Duty Diesel Extended Life Antifreeze/Coolant has been formulated to meet and is recommended for use with the following industry and OEM coolant specifications: ASTM D3306, D4985, D6210, D7583, AS/NZS 2108.1:1997 “Type A”, BS 6580, BS5117, Caterpillar EC-1 (Section 2.3-4.5 incl., extensive fleet experience on newer engines), Cummins 3666132, & 14603, Detroit Diesel 7SE 298, 93K217, Freightliner 48-22880, GM 1825M, 1899M and Heavy Truck, Navistar / ITE CEMS B-1 (ITE, International Truck and Engine), JIS K2234, Kenworth R026-170-97, MACK 014GS17004, MAN 324, MTU MTL 5048, PACCAR CS0185, Peterbilt 8502.002, TMC RP 329B, TMC RP 338, Volvo and CID-A-A-52624.

When used as directed this product provides:

  • 2-EHA FREE (2 ethylhexanoic acid)
  • Engineered for NEW cooling systems
  • Powered by RECO-COOLTM Corrosion Inhibitor Technology
  • Performance rated at up to 8 years, 15,000 hours, 1,200,000 kms*
  • Silicate, borate and phosphate free
  • CAT EC-1 Compatible
  • Excellent high temperature corrosion performance
  • Excellent heat transfer capabilities
  • Excellent liner cavitation performance
  • Compatible with, but DOES NOT require addition of SCA or coolant extenders
  • Hard water compatible
  • Elastomer compatible
  • Compatible with similarly formulated HDD ELC’s
  • Extended shelf life stability (8 years); no silicate drop-out or gel formation

This engine coolant meets the following performance requirements:

ASTM D3306, D4985, D6210, D7583

JIS K2234

AS/NZS 2108.1:1997 “Type A”

Kenworth R026-170-97

BS 6580, BS5117

MACK 014GS17004

Caterpillar EC-1

MAN 324


MTU MTL 5048

Cummins 3666132, 14603


Detroit Diesel 7SE 298, 93K217

Peterbilt 8502.002

Freightliner 48-22880

TMC RP 338

GM 1825M, 1899M and Heavy Truck


Navistar/ ITE CEMS B-1