Suitable for a wide range of applications (diesel trucks, buses, marine, locomotive and static engine and mining equipment), these coolants are manufactured with a low silicate and amine free formulation, which contains a pre-charge of supplemental coolant additive (SCA) for added protection against wet cylinder liner pitting.
The HDD engine coolants 50 can be used alone, or with an SCA for extended service applications. They contain sufficient inhibitors to enable them to be used as an initial fill fluid without the need for a pre-charge of supplemental coolant additive.
It is recommended to keep the maximum service interval for off-road engines without recharging the inhibitor system with SCAs at 240,000 kms (or 2 years).
In instances where extended service is required, the HDD Coolants 50 require ongoing maintenance with an SCA during their service life. It is recommended that the appropriate SCA for the engine is used when required and the use of HDD Coolants 50 with the Scania SCA or Glycool 350 should be avoided as these are NOT compatible.