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6BTA 370. Currently the coolant is ES Compleat EG. It was changed 5 years ago, approx. 800 hrs of running in those 5 years. I understand that the B series engines are not coolant sensitive, parent bore engine and I could have used regular green anti-freeze but that is not my question. My question is how long will the coolant last OR should I change now?Ā
If you look at the specs for the ES Compleat they state something like 1,000,000 miles or 4000 hours. Well, thats just crazy, or is it? I am assuming they are talking about big rigs but still, 4000 hrs. Does coolant suffer from ‘marine age’? I have not had to add any coolant to either engine in the 5 years since I changed, no overheat, no nothing.
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