Coolant contributes to a large percentage of all engine failures.
The presence of coolant (glycol) or water in an engine or transmission lubricant, indicates contamination from a number of possible sources. With coolant contributing to a large number of engine breakdowns, the failure to detect contamination can be extremely costly.
For example, bearing manufacturers have indicated that as little as 0.2% water contamination in oils can halve anti-friction bearing life.
Increased levels of sodium indicate the leakage of coolant inhibitor chemicals into the oil. The sodium is left behind in the oil even if the water evaporates.
|Low operating temperature||Equipment failure|
|Defective seals||High viscosity|
|New oil contamination||Poor lubrication|
|Improper storage||Increased operating temperatures|
|Cracked cylinder head||Acid formation|
|Weather -moisture||Reduced additive|
|Product of combustion||Harmful sludges and deposits|
|Check head bolt tension|
|Check head gaskets|
|Inspect heat exchangers and oil coolers|
|Check for correct operating temperatures, thermostat settings, etc|
|Evaluate equipment suitablility for applications|
|Avoid intermittent use if possible|
|Change oil and filters|
|Check for external moisture sources|