Extended life coolant (ELC) exhibiting nitrite depletion in machines equipped with aluminum...
Caterpillar technical service bulletin M0066850-01 for 2012-2017 Caterpillar CT660 and 2012-2017 Caterpillar CT681.
- Bulletin number
- M0066850-01
- Component
- Engine
- Summary
- Extended life coolant (elc) exhibiting nitrite depletion in machines equipped with aluminum radiators-nitrites in extended life coolant (elc) can react with the aluminum cooler to produce elevated ph and low nitrite levels in schedule oil sampling (s@o@s) samples. As there are multiple issues that can contribute to the depletion of nitrite, contact your local cat dealer to request level 2 coolant analysis if nitrite depletion is experienced.
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