Re: Cummins 5.9. Wet sleeve?
Reply #10 –
One clarification.
With any engine other than the Cummins B 5.9 engine, the "poorest" acceptable coolant is: Low silicate for diesels with added SCA. Regular automotive coolant is NOT acceptable, as they have high silicate content as well as no SCA.
A better option is the OAT based long life coolants.
Do NOT mix the two types.
Brett