Engine coolant quality can seriously affect the efficient operation of
engines. By investigating the coolant, Oilcheck can assist the end user
to assess the quality of coolant and maintain a positive
maintainence schedule.
Testing Level
|
| Level 1 |
A
basic check for anti freeze/anti boil content, available anti-oxidant
levels and also measures metal content due to corrosion or water
hardness. |
Level 2
|
Incorporates Schedule 1 as well as a level of the particulate contamination present (retained and dissolved solids). |
| Level 3 |
Incorporates Schedule 1 and 2 as well as the level of reserve alkalinity.
|
| |
| RECOMMENDED TESTING SCHEDULE |
ENGINE COOLANT |
TESTING LEVELS |
| Analysis |
Method |
Explanation |
Level 1 |
Level 2 |
Level 3 |
Corrosion Products
|
ASTM D6130 |
The analysis of coolant system corrosion elements by way of ICP (Iron, Copper, Lead, Aluminium and more). |
YES |
YES |
YES |
|
Buffer and inhibitor levels |
ASTM D5827 |
Uses
ion chromatography to monitor levels of coolant borate and phosphate pH
buffers as well as nitrite and nitrate corrosion inhibitors.
|
YES |
YES |
YES |
| Molybdate and silicate inhibitors |
ASTM D6130 |
Monitors levels of molybdate and silicate inhibitors using ICP. |
YES |
YES |
YES |
Contaminants and breakdown products
|
ASTM D5827 |
Uses
ion chromatography to measure chloride and sulphate contaminate levels
as well as measuring coolant breakdown product (glycolate, formate and
oxalate) levels. |
YES |
YES |
YES |
|
Anti Freeze % and Freeze Point |
OL1029 |
Determines antifreeze (glycol) level and can determine freezing point of the coolant. |
YES |
YES |
YES |
| Total Dissolved Solids |
OL1034 |
Is
the concentration of everything in the coolant except water and glycol.
High dissolved solids are associated with water pump and radiator
failure and leakage. |
|
YES |
YES |
|
pH of Coolant |
ASTM D1287 |
High
or low pH is associated with corrosion and coolant failure. Low ph
promotes corrosion of ferrous metals. High pH promotes corrosion of
aluminium components. |
YES |
YES |
YES |
| Retained Solids |
OL1003 |
Determines
solid particulate contamination in the coolant. Particulates promote
abrasive wear and are associated with pump failure. |
|
YES |
YES |
| Reserve Alkalinity |
ASTM D1121 |
Is a measure of the coolants buffer reserves and its ability to resist ageing. |
|
|
YES |
|
Which tests to use 
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